You may have had some answers on your enquiry already but if not the following may assist:
Greatgrandfather Walter William Easey’s marriage to Mary Patterson was recorded in Ely in the March quarter of 1915. Children of the union included William W (1915), Ernest (1917), Cyril (1918), Doris (1920) and Reg (1922).
The birth of Walter William was registered in Ely in the December quarter of 1883.
The 1901 census has him living with his parents 42 yo Father John and 42 yo Mother Mary in Haddenham together with his sisters 15 yo Elsie M and 14 yo Charlotte.
The 1891 census has him living in Haddenham with 32 yo Father John and 32 yo Mother Mary and 4 yo sister Charlotte.
John Easy’s marriage to Mary Leach is registered in Ely in the December quarter of 1882.
The 1861 census shows John living with 33 yo Father William (born in Soham) and 39 yo Mother Sarah (born in Norfolk). Also present is 8 month old sister Sarah Ann.
William Easey marriage to Susan China is recorded in the Downham distict, which takes in Cambridge and Norfolk districts, in the September quarter of 1857.
There does not appear to be a consistent use of either Easey or Easy in the records so you have to try each.
I hope this helps.