Reading the previous postings it appears that there was a sister Annie b. Truro Cornwall and a brother Frank. May be only a coincidence but Richard had younger siblings Annie and Frank.
1881 Census RG11/2069/77/3
Residing at Ford, Laverstock Wiltshire
CROSS William John 48 Nurseryman and Florist b. Oxford, Whitechurch
CROSS Elizabeth 46 Nurseryman's wife b. Cambridge
CROSS Edward Allen 17 b. Wiltshire, Meltchet Court
CROSS Mary Catherine 12 b. Wiltshire, Meltchet Court
CROSS Richard Frederick 11 b. Wiltshire, Meltchet Court
CROSS Annie Emily 10 b. Cornwall, Truro
CROSS Frank 2 b. Hants, Sherfield, Romsey
Cando