Not in my family Rowan but a bit of info for you.
Only child I could find of the marriage James George Hartill 1920.
called I would have thought after Georges father.
1891 19 Lord Street,Duddeston
James Harthill age 29 Nail Caster
Martha age 28
George age 9 months all born birmingham
James married Martha Lodge in 1885 he died in March 1900 age 38
1901 same address
Martha age 38 widow.
George 10
Elsie 8
Rebecca 6
Lizzie 1
1901 2 Williams Buildings,Trevor street,Aston
George Clegg age 48 b. Rochdale Engine stoker
Mary A age 38 b. Coventry
Katherine Stafford age 16 stepdaughter b. Coventry
Ada Clegg age 15 daughter b. birmingham
Thomas clegg age 13
George Clegg age 11
Rachel Clegg age 9
John Clegg age 8
Charles Clegg age 5
1891 2 Williams buildings
George Clegg age 36 b. Rochdale Foreman in paper mill
Mary A age 28 b. Coventry
Catherine Clegg,daughter, age 6 b. Coventry
Ada Clegg age 5 b. Birmingham
Thomas age 3
George age 1
George Clegg married Mary Ann Stafford in 1889 so they possibly lived together before this and had children.
George is a lodger in Stafford, unmarried in 1881 a stoker.