Peter Greven was born in 1820 in Luxembourg, Germany.

The 1860 United States census showed Peter Graven (age 40, born in Germany, shoemaker) married to Margt. (age 34, born in Germany) and living in McLean Township, Shelby County, Ohio. Children Ignatius (age 9, born in Ohio), Mary (age 5, born in Ohio), and Catharine (age 1, born in Ohio) also lived with the couple.

The 1870 United States census showed Peter Graven (age 50, born in Germany, shoemaker) married to Margareth (age 44, born in Germany) and living in St. Cloud, Minnesota. Children Ingnatz (age 19, born in Ohio), Anna M. (age 14, born in Ohio), Katharina (age 11, born in Ohio, and Emelia (age 8, born in Ohio) also lived with the couple.

The 1875 Minnesota census showed Peter Greven (age 55, born in Germany) married to Margarit (age 49, born in Germany) and living in St. Cloud Township, Stearns County, Minnesota. Children Ignatz (age 24, born in Ohio), Mary (age 19, born in Ohio), Kathrina (age 16, born in Ohio), Emily (age 13, born in Ohio), and Anna (age 3, born in Minnesota) also lived with the couple.

The 1880 United States census showed Peter Greven (age 60, born in Germany, farmer) married to Margarest (age 56, born in Germany) and living in St. Cloud Township, Stearns County, Minnesota. Children Katie (age 21, born in Ohio) and Emiline (age 19, born in Ohio) also lived with the couple.

The 1885 Minnesota census showed Peter Greven (age 65, born in Germany) married to Margreth (age 56, born in Germany) and living in St. Cloud, Minnesota. A daughter, Anna (age 14, born in Minnesota), also lived with the couple.

Peter Greven died July 24, 1889, in St. Cloud, Minnesota.

Page 941. The children of Mr. and Mrs. Peter Greven are Ignatz, of St. Cloud; Mary Ann, who died at the age of twenty-one years; Molly, who died in infancy; Catherine, of Walla Walla, Wash., widow of Aloysius Lommel; and Emelia, wife of Yasent A. Barthelemy, of St. Augusta. Mr. Barthelemy was married July 8, 1884, to Emilia Greven, who was born in Berlin, Ohio, November 8, 1861, daughter of Mr. and Mrs. Peter Greven. (History of Stearns County Minnesota, Volume II, William Bell Mitchell, H. C. Cooper, Jr., & Co., Chicago, 1915)