Census Records: US, Iowa
Death Records: Social Security Death Index; Find-A-Grave Project
Marriage Records
Public Trees
Diaries of Lorena Floye Beard, 1935-1977
History of Madison County, Iowa, published in 1915
Iowa Official Register Archives: 1949-1950; 1955-1 956
Kansas City Veterinary College records
Macksburg High School graduation records for 1909
Marriage Affidavit for Harley and Floye, Madison County, Iowa
Newspaper articles, including the Winterset Madisonian, Des Moines Tribune, and others
Personal collection of memorabilia
Personal recollections of relatives, friends
Wikipedia: History/population of Macksburg, Iowa