Hi Georgina,
They have a daughter Julia indeed:
1871RG10/1544 68 25
Bedford St Paul, Bedfordshire
17 Pretend? StJohn Millward, head, 55, Retired Grocer, b. Wootton
Ann, wife, 47, b. Thurleigh
Julia J, dau, 21, Bound? Sewer, b. Bedford (as all others)
Rose A, dau, 16, Dressmaker
Albert W, son, 14, scholar
Florence, dau, 12, scholar
Catharine, dau, 8, scholar
Minnie, dau, 4, scholar
(No other children in 1861 when they are at 32 Silver Street Bedford and John is a grocer)
Tanja