Aged 89 when died in 1826, so born about 1737.

The Richardus Mather "baptism" of 9 Mar 1731 in Deane is actually a burial.  There is a Deane baptism 22 Aug 1752 "Richard son of John Mather of Great Bolton" but this is too late.

Name:    Richard Mather
Baptism Date:    18 Dec 1737
Parish:    Eccles, Lancashire, England
Father's name:    John Mather
Register Type:    Bishops Transcripts
Reference Number:    Drm/2/83
Text:  "Richard son of John Mather of Clifton"
Also Hannah (19-Jun 1744) & Betty (28 Oct 1746)

or
Baptism: 13 Nov 1737 St Elphin, Warrington, Lancashire, England
Richard Mather - Son of John Mather & Ellen
    Occupation: Butcher
    Register: Baptisms 1733 - 1760, Page 28, Entry 16
    Source: LDS Film 1562956

Richard had his children baptised at Bank Street and Walmsley Presbyterian

Name    Richard Mather
Birth Date        abt 1737
Event Type    Burial
Death Date    abt 1826
Death Age    89
Burial Date    25 May 1826
Burial Place    Turton, Lancashire, England
Denomination    Presbyterian
Piece Title    Piece 1622: Turton, Walmsley Chapel (Presbyterian), 1762-1836
Place of Death:    Turton Workhouse

In the Burial Records at Walmsley Presbyterian Chapel is:
Richard Mather, buried 25 May 1826, age 89.
Turton Workhouse Paid 5/-

Can't find any newspaper article on the death of an old "Richard Mather"

Name:    Ann Haworth
Baptism Date:    4 Apr 1744
Parish:    Blackburn, St Mary the Virgin, Lancashire, England
Father's name:    Edmund Haworth
Mother's name:    Ann Haworth
Register Type:    Parish Register
Reference Number:    PR 3073/1/5

Ann Dau'r of Edmund & Ann Howarth of Lower Darwen, Yeoman

Still alive in 1779
Not buried at Walmsley, Turton (burial index started there in 1792)
Possibly the following:

Name:    Ann Mather
Event Type:    Burial
Burial Date:    27 May 1786
Burial Place:    Bolton-le-Moors, St Peter, Lancashire, England
Parish as it Appears:    Turton Chapel
Reference Number:    L243/1/2/1
Archive Roll:    855

Another burial record records;
"Ann D. of (space) Mather of G.B." 7 May 1780.
This is a child, not a wife and is a year after daughter Alice was born, so probably not birth complications.

Name:    Ann Mather
Event Type:    Burial
Burial Date:    17 Dec 1802
Burial Place:    Bolton-le-Moors, St Peter, Lancashire, England
Reference Number:    GB127.L243/1/2/3
Ann Mather of G.B.

Isaac was born late 1759 or early 1760, before Ann and Richard were married and later baptised in 1863.  There are no other Richard and Ann marriages in Lancashire around this time!  A birth in 1760 would also make Isaac 82 when died, which is consistent with death and burial records.

Baptisms: 16 Nov 1763 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Isaac Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

MATHER, ISAAC        82 
GRO Reference: 1842  M Quarter in BOLTON UNION 
Volume 21  Page 101

Lancashire Death indexes for the years: 1842
MATHER    Isaac    82    Edgworth     EDG/1/273

The Bolton Chronicle - Saturday 26 Feb 1842:
DEATHS:  On the 18th Inst, aged 82 years, Mr. Isaac Mather of Edgworth.

Death certificate shows Isaac died on the 19th February 1842 at Edgworth.  He was a weaver and died of "Old Age".  He was still with his daughter and son-in-law Abraham Settle, Occupier, who reported his death..

Name: James Mather 
Gender: Male 
baptism/christening date: 02 Nov 1761 
baptism/christening place: BANK STREET UNITARIAN OR PRESBYTERIAN,BOLTON LE MOORS,LANCASHIRE,ENGLAND 
birth date: 28 Sep 1761 
father's name: Richard Mather 
mother's name: Anne 
indexing project (batch) number: C08640-1 
system origin: England-ODM 
source film number: 0560877 (RG4 64, 2004) 
    Abode: Turton
    Notes: Baptised at Bolton
    Baptised by: Revd. Philip Holland
This is the most likely, as future wife Happy Lomax was also Christened at Bank Street Unitarian. Although the James and Susannah baptisms dont align with the others, there is only one James and Ann family in Bolton district, so it seems Isaac was baptised late (after the marriage).

or

JAS. MATHER
Birth: 
Christening:  11 DEC 1763   Saint Peter, Bolton Le Moors, Lancashire, England
Parents:
  Father:  ELIAS MATHER
  Mother:  MARY

or

James Mather
Christening:  15 JAN 1769   Deane, Lancashire, England
Parents:
  Father:  James Mather

May have died between 1798 and 1815, as Happy married again in 1816.  Most probably about 1814, but its a guess!

Several death records for James Mather, but none match age and spouse.

A James Mather Cash receipt for £2-2-0 for a grave no. 7-29 is recorded in 20-Oct-1811 in the Register of Burials at Bridge Street Wesleyan Chapel at Little Bolton in the parish of Bolton le Moors, Lancashire from 1810 to 1837.

Non-Conformist Record Indexes (RG4-8),
Name: James Mather 
Event Type: Burial 
Burial Date: 20 Oct 1811 
Burial Place: Bolton Le Moors, Lancashire 
Affiliate Publication Number: RG4_1024 

Happy Mather is listed in the L.B. Poor Book for 1811, which is consistant with Samuel dying in 1811.  She was a rate and tax payer, with 2s 9d rate collected for a House in Blackburn Street and not on the poor recipient list.

There is another burial record for a James Mather, 54 in Wigan 28 June 1814, but the Bolton record is more likely.

Baptisms: 23 Jul 1763 Bank Street Unitarian Protestant Dissenters, Bolton, Lancashire, England
Susanna Mather - Daughter of Richard Mather & Anne
    Born: 28 Jun 1763
    Abode: Turton
    Baptised by: Revd. Philip Holland
    Register: Baptisms 1754 - 1788, Page 25, Entry 290
    Source: LDS Film 560877


name: Susanna Mather 
gender: Female 
baptism/christening date: 23 Jul 1763 
baptism/christening place: BANK STREET UNITARIAN OR PRESBYTERIAN,BOLTON LE MOORS,LANCASHIRE,ENGLAND 
birth date: 28 Jun 1763 
father's name: Richard Mather 
mother's name: Anne 
indexing project (batch) number: C08640-1 
system origin: England-ODM 
source film number: 0560877 (RG4 64, 2004) 

"Susanna daughter of Richard and Anne Mather of Turton baptised July  23 1763 PH, born June 28 1763"

Assumed to have died an infant, as the next daughter was also baptised Susan.

A Susannah Mather was buried at St Mary's Manchester, 1 Dec 1840, aged 75 (2 years out), which is unlikely to be her.

On 16-Sep-1764, a Susannah, D'r of John Mather was buried at Walton-le-Dale, Blackburn but this is wrong father and wrong place.

Perhaps Susannah never died, but got baptised twice !

Baptisms: 12 Sep 1766 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Susan Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

Burial: 27 Mar 1853 St Anne, Turton, Lancashire, England
Susan Mather -
    Age: 83 years
    Abode: Gt. Bolton
    Buried by: James Spencer Incumbent
    Register: Burials 1850 - 1878, Page 31, Entry 242
    Source: LDS Family Search

Name:    Susan Mather
Birth Year:    abt 1770
Death Age:    83
Burial Date:    27 Mar 1853
Burial Parish:    Turton, Lancashire, England
Register Type:    Bishop's Transcript
Reference Number:    Drm/2/40

There is no civil registration for the Death of Susan Mather or Susan Smith. The closest match is a Susan Nutter, Bolton (Ref: 8c,224).  Also, there is no Susan Mather in the 1841 or 1851 Bolton Census.

This burial record is for Susan Nutter, or the record has been incorectly indexed.  There is no civil record for Susan Mather, and Susan Nutter was on the 1841 census, aged 70 at Holcombe, Bury.
Deaths Mar 1853   (>99%)
Nutter     Susan          Bolton     8c, 224
Lancashire Death indexes for the years: 1853
NUTTER    Susan    83    Eastern Bolton    Bolton    EB/21/355

Death Cert Ordered (May 2019) but not Susan Mather
      

Baptisms: 5 Nov 1768 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Solomon Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904


Died Oct-1844, aged 76 so born 1768
(not about 1765 as on an IGI index record)

Lancashire Death indexes for the years: 1844
MATHER Solomon     76     Sharples    SH/2/110

The Bolton Chronicle: Saturday 07 December 1844:
DEATHS:  On the 30th ult, Aged 76, Mr. Solomon Mather, of Sharples, near this town.

MATHER, SOLOMON        76 
GRO Reference: 1844  D Quarter in BOLTON UNION 
Volume 21  Page 127

Death Certificate:
Solomon died of "Fits" 30th Nov 1844 at Old Ellen's, Sharples aged 76.  His occupation was "Husband of Martha Mather, Hand-Loom Weaver".
The informant was Richard Mather, Occupier present at the death at Old Ellen's, Sharples.
Note: In 1841, Solomon (aged 70) was living at "Old Nells" with his young daughter Ann (aged 25).  This is probably the same place.

Aged 70 in 1841 (rounded)
Aged 83 in 1851, born Walmsley
Aged 86 when died in 1853

So possibly about age 6 when baptised, or younger than she thought!

Baptisms: 16 Jul 1773 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Nancy Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

Died after the 1861 census.

Name:    Nancy Horrocks
Birth Year:    abt 1767
Death Age:    86
Burial Date:    22 May 1853
Burial Parish:    Bolton-le-Moors, Lancashire, England
Register Type:    Bishop's Transcript
Reference Number:    Drm/2/30

Baptisms: 15 Oct 1775 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Ann Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

The Ann Mather that married Richard Greenhalgh was probably born between 1750 and 1780.  There are no matching births in Bury, three possible baptisms from Bolton:

(1) 11 May 1761: Ann daughter of Thomas & Christian Mather
(i.e. Anne, daighter of Christian or Christiana of Bank Street)

(2) 11 Mar 1771: Add daughter of John & Martha Mather
(i.e. Anne Mather, also baptised Bank Street, but died an infant)

(3) 15 Oct 1775: Ann daughter of Richard & Ann Mather
This is our family tree and may expect children and DNA
Born 1774 if died aged 55

Name:    Ann Greenhalgh
Age:    55
Birth Date:    abt 1774
Burial Date:    29 Mar 1829
Burial Place:    Bolton-le-Moors, St Peter, Lancashire, England
Spouse:    Richard Greenhalgh
Reference Number:    GB127.L243/1/5/6

Abode: Harwood

Aged 60 in 1841 at Dandy Row
Aged 73 in 1850 US Census

Baptisms: 30 Apr 1777 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Richard Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

At Dandy Row in 1840 with Son John and others.

Travelled to the US with son John in 1848.  Died at Baltimore, Maryland.

No matching Bolton death record.

Baptisms: 1 May 1779 Walmsley Meeting House, Bolton le Moors, Lancashire, England
Alice Mather - Child of Richard Mather & Ann (formerly Howarth)
    Abode: Turton
    Notes: [Congregation: Walmsley Meeting]
    Baptised by: Aspinal
    Register: Baptisms 1783-1793, Page 4
    Source: LDS Film 560904

There is no Alice Walmsley alive in 1841 aged over 35.


The Alice Walmsley (of correct age) buried at Holme appears to be the wife of Joseph Walmsley (1773-1834) who is also buried there.  Sarah Walmsley (1805-1825) from the Old Pottery is also buried there.


Name:    Alice Walmsley
Death Age:    49
Birth Date:    abt 1779
Burial Date:    15 Jul 1828
Burial Place:    Holme, Lancashire, England
Register Type:    Parish Register
Reference Number:    PR 2937/1/9

Abode: Grains Pottery