Hi Walter - and a very warm welcome to Rootschat!
If Peter was an only child, then I guess we are looking for cousins.
His father, Charles, had an older sister called Ellis. She married a William Lloyd in 1918.
1891 Census of Ramsgate (St Lawrence) Kent
RG 12/732 folio 143 page 5
2 Twin Villas
William C Looker, head, 51, brick manfacturer, Kingston Surrey
Mary M., wife, 34, Kensington London
Ellis M., daur, 7, scholar, New Malden Surrey
Charles C., son, 3, Ramsgate Kent
1901 Census of Guildford (Stoke Within) Surrey
RG 13/603 folio page 10
68 Woodbridge Road
William C Looker, head, 61, living on own means, Norbiton Surrey
Mary, wife, 44, Kensington London
Ellis, daur, 17, New Malden Surrey
Charles C., son, 13, Ramsgate Kent
Birth Registration:
Ellis Looker
June qtr 1883 Kingston vol 2a p 318
Marriage Registration:
William E Lloyd & Ellis M Looker
March qtr 1918 Kingston vol 2a p 931
So...bearing in mind that Ellis was in her mid-thirties when she married, I wonder if they had any children?