Aged 60 when died

There are no baptism records for an Isaac Smith near Bradford around 1753 (if aged 60 when died), the nearest being Northowram and Ovenden (both North of Halifax).  The Non-conformist Northowram baptism shows William Smith, father of Isaac to be from Clayton, which is very close to Allerton (only about 1.5 miles south).

Name:    Isaac Smith
Gender:    Male
Event Type:    Baptism
Father:    William Smith
Baptism Date:    16 Jul 1753
Baptism Place:    Northowram, Yorkshire, England
Denomination:    Independent
Piece Title:    Piece 2078: Northowram, Halifax (Independent), 1744-1760

The first two children were baptised within 10 days of their birth, so its assumed that Isaac was also baptised quickly.

Name:    Isaac Smith
Death Age:    60
Birth Year:    abt 1753
Burial Date:    12 Jan 1813
Parish:    Bingley, All Saints, Yorkshire, England
Abode: Allerton, in the parish of Bradford
Occupation: Farmer

(Cant find an obituary notice in the local papers for Jan 1813).

Marriage shows Elizabeth Skirrow of the Parish of Birstall by Licence.

Full Marriage record shows Elizabeth from the parish of Bingley, married by license. 

Other records show Elizabeth as aged 18 when married, so born 1760 (but his is probably another from Leeds)
Name:    Elizabeth Skirrow
Gender:    Female
Age:    18
Birth Date:    1760
Marriage Date:    21 Mar 1778
Marriage Place:    York, England
Spouse:    Isaac Smith
FHL Film Number:    1470141

Possibly born in Birstall, and living at Bingley at time of Marriage in 1778.  However, William's baptism shows mother as "Elizabeth of Cottingley".

When Isaac died in 1813, his will showed he had property (two cottages) in Cottingly.

Name:    Elizabeth Skirrow
Event Date:    21 Dec 1759
Event Type:    Baptism
Parish:    Bingley, All Saints
Abode:    Cottingley
Father's name:    Holdroyd Skirrow

Isaac makes no provision or mention for his wife in his will (made on 26-Feb-1810), so it must be assumed that Elizabeth died before him, probably soon after the birth of William as there are no more children.

Name:    Elizabeth Smith
Event Date:    1 Sep 1805
Event Type:    Burial
Parish:    Bingley, All Saints
Spouse's Name:    Isaac Smith

Text reads:  Sep 1 - Elizabeth Wife of Isaac Smith of Allerton, Part of Bradford"

Name:    John Smith
Birth Date:    3 Feb 1779
Event Date:    8 Mar 1779
Event Type:    Baptism
Parish:    Bingley, All Saints
Father's name:    Isaac Smith

John son of Isaac Smith of Cottingley, Farmer

Isaac left his estate to his three grandchildren John, William and Thomas, and the remainder to his son William.  There is no mention of John who most likely died before Isaac (ie before 1813).

William also referes to the three nephews, sons of his late brother John so definately died before 1821


John Smith of Cottingley, Farmer

Name:    Mary Smith
Gender:    Female
Event Type:    Baptism
Father:    Isaac Smith
Mother:    Elizabeth
Baptism Date:    14 Feb 1781
Baptism Place:    Bingley, Yorkshire, England
Denomination:    Congregational
Piece Title:    Piece 3383: Bingley, The Prebysterian or Independent Chapel (Congregational), 1754-1837

Feb 14th:  Mary Daughter to Mr Isaac Smith and his wife Elizabeth of Cottingley was baptised by the Rev'd Mr Lillie

Mary may not have survived 1811, as there is no mention of her in her father Isaac's will.

Aged 38 when died, so born about 1784:

Name: William Smith
Event Date: 7 Nov 1784
Event Type: Baptism 
Parish: Bradford, St Peter (Bradford Cathedral)
Father's Name: John Smith of Brad(ford), Comber - NOT HIM

Name: William Smith
Event Date: 30 May 1784
Event Type: Baptism 
Parish: Bradford, St Peter (Bradford Cathedral)
Father's Name: John Smith of Bradford, Tailor - NOT HIM

This is the correct one (of Cottingley):
Name:    William Smith
Gender:    Male
Event Type:    Baptism
Father:    Isaac Smith
Mother:    Elizabeth (of Cottingley)
Baptism Date:    2 Nov 1783
Baptism Place:    Bingley, Yorkshire, England
Denomination:    Congregational
Piece Title:    Piece 3383: Bingley, The Prebysterian or Independent Chapel (Congregational), 1754-1837

Nov: 2 William, son to Isaac Smith & his wife Elizabeth of Cottingley was baptised by the Rev Mr Lillie

Son Henry's christening records the parents as "Son of the late William and Jane Smith", so William must have died between Aug-1821 and June-1822

William wrote his will 30th Nov 1821, and it wasn't proved until the following August: "Will of William Smith late of Allerton P.Bradford Gent'n deceased proved by Henry Hudson his father-in-law, Peter Laycock & W'm Smith the Joint Exors. 16th Aug 1822., Under £450

Burial:
Church: All Saints, Bingley
Name: William Smith
Abode: Allerton, part of Bradford
Date 8 Feb 1822
Age: 38 Years