Not winning, gralorn?
I definitely think this Croftwright family are yours - don't know about the father absconding which you mentioned earlier but in 1901 wife Mary is now Wright shown as a widow and living in Bedwelty, Monmouthshire where she is a 'Teacher in Board School' and with her are daughter Rhoda and her sister in law Annie Wright who is also 'Teacher in Board School'.
As Croftwright Thomas and Mary Jane, nee Rivers had the following children:
Isabella Mary - born June quarter 1885 Chelsea
Rhoda - born Dec.1886 Chelsea
Thomas George J. (new GRO index shows J is for Joshua) - born Dec.1888 Chelsea
Henry William M. (new GRO index shows M is for Mager) - born June qtr.1890 Chelsea
George Edward - born Sept.1895 Chelsea
Margaret - born June qtr.1898 Chelsea
Can't find eldest daughter Isabella, nor youngest Margaret, in 1901 BUT sons Thomas, Henry (Harry in 1891) and George appear to be at some kind of school 'Sisters of Charity' in Sculcoates, Yorkshire.
Cannot give details re. 1911 census but Mary is now in Portisham, Dorset. I wonder whether this may be why Harry joined a Dorset regiment.
The Thomas Wright you mention as being in Wiltshire regiment in Devizes in 1911 is not the former Thomas George Croftwright. He was a plain Thomas Wright, coincidentally son of a Thomas and Mary, but found he enlisted 13/6/1905 when he was then living in Swindon, as indeed were his family (they'd moved there in 1890's). His father and brothers are named, and address was 6 Byron Road, Swindon.
So, as the Croftwright's have become plain Wright by 1901 locating the 3 sons in 1911 will no doubt be problematic with such a common surname.
I note on 1881 census the name Croftwright is shown as Croft-Wright.
So whether Thomas senior absconded or did in fact die, clearly wife Mary had to support her family as best she could and became a teacher in Wales (1901 when 3 boys at school in Yorkshire) and Dorset (1911).
Annette