Listed here are the major milestones or personal events that occurred during the life of Lena (Heiden) Koster and other closely related family members. This includes the dates of birth, marriage and death along with the places of residence over the years. Events are noted for this person and his or her spouse and children.

0 7 Oct 1881 West 9th Street, Monroe, Monroe County, Michigan. She was the fifth of eight children of August and Fredericka (Knaack) Heiden .
19 8700 South Custer Road in Raisinville Township, Monroe County, Michigan.
21 19 Feb 1903 Lena married John Koster,Jr in Maybee, Monroe County, Michigan.
22 1 Feb 1904 Erlin John Koster was born in Ida, Monroe County, Michigan.
35 7 Sep 1917 Harold Heiden Koster was born in Dundee, Monroe County, Michigan.
38 18 Dec 1919 Marvin John Koster was born in Dundee, Monroe County, Michigan.
40 20 Apr 1922 Heinrich Heiden died at the age of 55 at home at 8420 Dixon Road, Raisinville Township, Monroe County, Michigan.
40 5 Sep 1922 August Heiden died at the age of 84 at his home at 8700 South Custer Road in Raisinville Twp, Monroe County, Michigan.
42 9 Feb 1924 Erlin John Koster and Helen M. Schaefer were married in Dundee, Monroe County, Michigan.
43 16 Jan 1925 Gerald John Koster was born in Toledo, Lucas County, Ohio
44 14 Jan 1926 Fredericka "Rika" (Knaack) Heiden died at the age of 84 at her home at 8700 South Custer Road in Raisinville Township, Monroe County, Michigan.
54 9 Jan 1936 Erlin John Koster and Helen M. (Dorell) Hazlet were married in Dundee, Monroe County, Michigan.
56 23 Jan 1938 Harold Heiden Koster and Violet E. Keck were married in St Matthew Lutheran Church in Raisinville Township, Monroe County, Michigan.
63 10 June 1944 Marvin John Koster and Kathleen Lafferre married in Dundee, Monroe County, Michigan.
65 23 April 1946 Kathleen (Lafferre) Koster died of cancer at the age of 22 in Dundee, Monroe County, Michigan.
69 Bedford Township, Monroe County, Michigan.
70 3 Jan 1951 Ernst Heiden died at the age of 82 in Raisinville Twp, Monroe County, Michigan.
75 1956 Marvin John Koster and Mary M. Knegendorf married
76 11 Dec 1957 Herman Heiden died at the age of 81 in Sparrow Hospital in Lansing, Michigan.
78 21 June 1959 John Heiden died at the age of 75 in Raisinville Twp, Monroe County, Michigan.
80 1 July 1962 John Koster died at the age of 82 in Toledo, Lucas County, Ohio
91 18 June 1973 Home of Marvin John Koster at 11501 Dixon Road in Raisinville Township, Monroe County, Michigan.
21 June 1973 Maple Grove Cemetery, Dundee, Monroe County, Michigan.