1829 Birthdate:2471 Birth year of 1829 estimated based on age (41 years) in 1870 census enumeration. Birth place of Bavaria given in same enumeration.

1867 Marriage:996 Marriage of Jacob Decker and Katharine Kluepfel in Dayton, Montgomery County, Ohio on 12 December 1867.

Research assumptions based on 1870 and 1880 census; use with caution:
1) Katharina, age 26 in 1870, was the wife of Jacob Decker, supported by 1867 Montgomery County marriage record.
2) Elizabeth, age 21 in 1870, was not the daughter of Katharina, but rather Jacob's daughter, based on the 1880 census. She was disabled in some way.
3) Magdalina, age 51 in 1880, was not the mother of either Elizabeth and or Gustaf / Augustus, based on an analysis of their relative ages and the presence of Katharina along with the two year old Gustaf in 1870.
4) It is likely but not proven that Katharina died between 1870 and 1880.

1870 U.S. Census:2471
Montgomery County, Ohio (Dayton, 6th Ward)
Enumerated 14 July 1870
Jacob Decker •• 41, male, white, dealer of flour and feed, real property value $8,000, personal property value $5,000, born in Bavaria, father and mother foreign born, male over the age of 21
Katharina •• 26, female, white, keeping house, born in Ohio, father and mother foreign born
Elizabeth •• 21, female, white, helps keeping house, born in Hesse Darmstadt, mother and father foreign born
Gustaf E. •• 2, male, white, born in Ohio, father foreign born

1880 U.S. Census:2472
Montgomery County, Ohio (Dayton)
Enumerated 4 June 1880
33 Quitman St.
Jacob Decker •• white, male, 52, married, dealer in flour and feed, born in Bavaria, father born in Bavaria, mother born in Bavaria
Magdalina •• white, female, 51, wife, married, keeping house, born in Kohr Hessen, father born in Kohr Hessen, mother born in Kohr Hessen
Elizabeth •• white, female, 28, daughter, single, at home, maimed, crippled, bedridden or otherwise disabled, born in Hesse Darmstadt, father born in Bavaria, mother born in Kohr Hessen
Agustus •• white, male, 12, son, single, at school, attended school within the year, born in Ohio, father born in Bavaria, mother born in Bavaria
Hellen Bodenmiller •• white, female, 20, servant, single, born in Baden, father born in Baden, mother born in Baden