In 1900 US Census for District 349, Chicago Ward 12, Cook County, Illinois Bert, 25, was living with his parents and working as a laborer.
In the 1910 US Census for District 111, Rockford, Floyd County, Iowa 35-year-old Bert was still living with his parents and working as a farm laborer on the home farm.
In the 1920 Census for District 82, Long Beach, Los Angeles County, California Bert, 45, was living with his widowed mother and was listed as having no trade or profession.