He was the son of Edmond Dean Mansell & Ida May Denyer. I think the 'J' is for John his paternal grandfather and 'C' is for Charles his maternal grandfather. I found an Edmond J Mansell who had married a Marie J in the 1930 census. I think this is my great uncle's son and he has a son by the name of Edmond E Mansell and his mother-in-law Minnie Karpanski is living with them. When I can get the documents to look at I am hoping I can make sure that this is my great uncle's son.