1885 Iowa State Census, page 88
Keokuk County, Fords road or subdivision
Klepfer, Stephen, 37, male, married, farmer, born in Germany, both parents of foreign birth, subject to military duty, eligible to vote
Klepfer, Elizabeth, 25, female, married, keeps house, born in Illinois, both parents of native birth
Klepfer, Stephen, 10, male, born in Illinois, father of foreign birth, mother of native birth
Klepfer, Emma, 7, female, born in Illinois, father of foreign birth, mother of native birth
Klepfer, William, 3, male, born in Illinois, father of foreign birth, mother of native birth
Klepfer, George, 1, male, born in Illinois, father of foreign birth, mother of native birth

1900 U.S. Census, State of Missouri, Clark County, Madison Township
Enumeration District 27, Sheet 8
Dwelling 155, Family 156
Klepfer, Steven, head, white, male, born December 1847, 52, married for 21 years, born in Germany, both parents born in Germany, year of immigration 1873, 27 years in the United States, naturalized citizen, farmer, 0 months unemployed in past year, can read and write, speaks English, rents, farm, number on farm schedule 165
Klepfer, Lizzie, wife, white, female, born May 1860, 40, married for 21 years, mother of 7 children of whom 7 survive, born in Illinois, both parents born in Germany, can read and write, speaks English
Klepfer, William, son, white, male, born May 1881, 19, single, born in Illinois, father born in Germany, mother born in Illinois, farm laborer, 0 months unemployed in past year, can read and write, speaks English
Klepfer, Mamie L., daughter, white, female, born February 1885, 15, single, born in Iowa, father born in Germany, mother born in Illinois, servant, 6 months unemployed in past year, can read and write, speaks English
Klepfer, Bertha C., daughter, white, female, born December 1887, 12, single, born in Illinois, father born in Germany, mother born in Illinois, at school for 8 months, can read and write, speaks English
Klepfer, George, son, white, male, born August 1883, 16, single, born in Iowa, father born in Germany, mother born in Illinois, cannot read or write, speaks English
Klepfer, Louis, son, male, white, born April 1891, 9, single, born in Illinois, father born in Germany, mother born in Illinois, at school for 8 months, can read and write, speaks English
Klepfer, Agnes C., daughter, white, female, born June 1894, 5, single, born in Illinois, father born in Germany, mother born in Illinois, at school for 2 months
Klepfer, Lawrence, son, white, male, born June 1898, 1, single, born in Illinois, father born in Germany, mother born in Illinois