I am researching my fathers birth family. My father clifford john barnes (aka clifford john barker) was born in london in 1926. his mother emily rose barnes lived at 47 patshull road, st pancras at the time of his birth. her occupation is listed as a caterers waitress. from further research I have discovered living at 47 patshull road in 1926 was a John Barker. i believe this is my grandfather. however i have no further information regarding him.

my father lived with his mother in london until the age of three or four, when he was fostered in a village in gloucestershire (uncertain which), with a family he thinks were called watson. when about five or six years he was moved and fostered by a basil and kathy wickins in Reydon, southwold, suffolk until kathy's death in 1940.
he then lived with kathys sister Florence (pat) gregory in stroud green, london for a short time until going to live at a boys hostel in highbury barn, london

he was told in 1940 that he also had a sister but i haven't been able to find any information about a possible sister.

i'm loooking for information about any of the above or suggestions for how to extend my research of my fathers family