Found in the 1920 census of Illinois, Whiteside County, Montmorency Township:
Harm Harms age 52 born IL. parents Germany Anna Harms age 48 wife born Germany parents Germany Ella Harms age 26 daughter born Illinois can't make out name daughter age 19 born IL. Harm (can't make out middle initial, could be M)Harms born Minnesota Mararet Harms age 8 daughter born IL. Louise Harms age 2 daughter born IL.