Hi,
Here he is in the 1901 census, 7 Blechyndon St, Kensington London:
Frank L Robson, 23, b. Aldershot, Hampshire, Caretaker of Mission Hall
Louisa Robson, 28, b. Leighton Buzzard, Bedfordshire, Wife
Louisa Robson, 1 month, Notting Hill, London, Daughter
Actually somebody else is looking for exactly the same person! (The 'caretaker of mission hall' rang a bell.)
Look for Koala and his message Please Help Mrs Koala.
Time you two got together!
Have fun,
Ros