Based on the following entry I believe his wife’s name was Doris Englund.
4626# Englund, Fritz -WW1- Army. DOB 07-18-1892 in Smoland, Sweden, Entered Service 07-22-1918 in WestPoint, Nebraska, Discharged 03-26-1919 at Camp Dodge, Iowa, DOD 01-16-1981 in Essex, Iowa. Age 86, Burial on 01-19-1981 in Essex Cemetery, Essex, Iowa. Wife-Olga Marie Anderson Englund, Relatives; Mrs Wemdell (Elvera) Johnson --- Essex, Iowa and Mrs Raymond (Doris) Palmquist --- Red Oak, Iowa, Father-Otto Frederick Englund, Mother-Caroline Anderson Englund.