| Sources | [S30]  1910 US Federal Census, (www.ancestry.com). 
 
[S24]  1920 US Federal Census, (www.ancestry.com).Name: 	Casper Erhardt
 Home in 1920: 	Township 141, Oliver, North Dakota
 Age: 	23
 Estimated birth year: 	abt 1897
 Birthplace: 	Russia
 Relation to Head of House: 	Son
 Father's name: 	Constlatin Erhardt
 Father's Birth Place: 	Russia
 Mother's name: 	Frances Erhardt
 Mother's Birth Place: 	Russia
 Marital Status: 	Single
 Race: 	White
 Sex: 	Male
 Year of immigration: 	1903
 Able to read: 	Yes
 Able to Write: 	Yes
 
 
[S25]  1930 US Federal Census, (www.ancestry.com). 
 
[S888]  Social Security Death Index 1935 - Current, (www.ancestry.com).Name: 	Kasper Erhardt
 SSN: 	502-36-6331
 Last Residence: 	58563  New Salem, Morton, North Dakota, United States of America
 Born: 	23 Mar 1897
 Died: 	Mar 1966
 State (Year) SSN issued: 	North Dakota (1955)
 
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