1870 U.S. Federal Census Waterford, Oakland Co., Mi Pg. 22, Dw. 158, Fam. 152
August Hertzer, 40, M, W, Doctor, 500, 1200, Prussia
Charlotte Hertzer, 26, F, W, Keeping House, Hessen Hamburg
Caroline Hertzer, 16, F, W, NY
John Hertzer, 5, M, W, MI
William hertzer, 2, M, W, MI
Helena Hertzer, 8/12, F, W, MI, Oct.
Charles Hertzer, 6, M, W, NY

1880 U.S. Federal Census Big Prairie Twp., Newaygo Co., MI Pg. 304A
August hertzer, 1830, Germany, Self, FB & MB Germany, W, M, Married, 50, Farmer and Physician
Charlott Hertzer, 1843, Germany, Wife, FB & MB Germany, W, F, married, 37, Keeping House
Carl Hertzer, 1864 NY, Son, FB & MB Germany, W, M, Single, 16, Working on farm
John hertzer, 1866, MI, Son, FB & MB Germany, W, M, Single, 14, At School
William hertzer, 1868, MI, Son, FB & MB Germany, W, M, Single, 12, At School
Lusina Hertzer, 1870, Mi, Daughter, FB & MB Germany, W, F, 10
Fritz Hertzer, 1872, MI, Son, FB & MB Germany, W, M, Single, 8
Apollina Hertzer, 1874, MI, Daughter, FB & MB Germany, W, F, Single, 6
Sarah Hertzer, 1876, MI, Daughter, FB & MB Germany, W, F, Single, 4
Henry Hertzer, 1878, MI, Son, FB & MB Germany, W, M, Single, 2
Della Hertzer, 1880, MI, Daughter, FB & MB Germany, W, F, Single, 4 Months

Portrait and Biographical Album Newaygo Co., Mich. by Chapman brothers...Page 345
August H. Hertzer, M.D., section 10, Big Prairie Township, was born Aug. 25, 1829, in Saxony, Prussia, which was also the native province of his parents. Hi grandfather, John Godfrey Hertzer, was of princely descent, coming on a direct line from the barony of Hertzer, and born about 1743. The father John Godfrey Christian Hertzer, was born Aug. 4, 1799. The mother, Carolina Elizabeth Hertzer, was Born Aug. 25, 1805.
......Mr. Hertzer was married in Germany, to Apollonia Barth.......Mr. Hertzer was married to his present wife Feb. 9, 1865, at Detroit. She was born in Meisenheim in the county (Landgrafschraft) of Hesse-Hornburg, March 13, 1843 and was the widow of Charles Mitchell, by whom she had one son-Carl, born Oct. 29, 1863, in New York The maiden name of Mrs. Hertzer was Charlotte Henrietta Feickerth, and is the daughter of William and Magdalena (Illeges) Freickerth. Mr. and Mrs. Hertzer have nine children, namely: John August, William August, Lusina, Fritz August, Apollonia, Sarah, Henry August, Della and Godfrey August.

NOTE: August's first wife and children are buried in Deerfield Center Cemetery, Livingston Co., Michigan.