John F Cross was aged 30 in 1911, born Liverpool

May have died 1944, Liveprool

EDDOWES, LILIAN        SHORTREED 
GRO Reference: 1882  M Quarter in BIRKENHEAD 
Volume 08A  Page 484

Cheshire Birth indexes for the years: 1881
EDDOWES    Lilian     Birkenhead, Wirral    BIR/127/43

Deaths Dec 1910   (95%)
Cross  Lilian  29  Birkenhead  8a 277

Aged 9 in 1911

Births Sep 1902   (>99%)
Cross  John Albert     Birkenhead  8a 536

Cheshire Birth indexes for the years: 1904
CROSS    Charles Francis    EDDOWES    Birkenhead    Wirral    BIR/220/33

Name:    Charles Francis Cross
Registration Year:    1904
Registration Quarter:    Jan-Feb-Mar
Registration district:    Birkenhead, Cheshire
Volume:    8a
Page:    460

Cheshire Death indexes for the years: 1904
CROSS    Charles Francis    0    Birkenhead    Wirral    BIR/125/54

Name:    Charles Francis Cross
Estimated birth year:    abt 1904
Registration Year:    1904
Registration Quarter:    Jan-Feb-Mar
Age at Death:    0
Registration district:    Birkenhead, Cheshire
Volume:    8a
Page:    316

The Charles Cross buried 13 Feb 1904 at Frankby, Cheshire, aged 0, was another, the son of William and Sarah Ann.

Aged 6 in 1911

Births Sep 1905   (>99%)
Cross  Mary Alice     Birkenhead  8a 506

Died in Ottawa (married)

Assuming Elizabeth Eddowes mentioned her grandchildren in date of birth order in her will, William was the one born in 1908

The 1911 census confirms this assumption.  He was Aged 3 in 1911

Births Jun 1908   (>99%)
Cross  William James     Birkenhead  8a 465

William joined the merchant marine and in 1926, died from drowning when he fell into the cold waters of the Montreal harbour while hanging below a ship, painting it.

William Cross
DEATH:    26 Oct 1926
BURIAL:  Cimetière Mont-Royal, Outremont, Montreal Region, Quebec, Canada
PLOT    G 393 Sailors' Institute
MEMORIAL ID    108128974 

Assuming Elizabeth Eddowes mentioned her grandchildren in date of birth order in her will, William was born in 1910, possibly as Lillian died giving birth.

Births Sep 1910   (99%)
CROSS  James H     Birkenhead  8a 497

James was 7 months in 1911

James Cross died in Kingston, Ontario, Canada on 8 July 2010.