b. 10 November 1894, d. 31 March 1988
| Birth | 10 November 1894 | Alfred August Gumper was born on 10 November 1894 in Missouri. |
| Cen-Head
(Enumerated with) | 12 June 1900 | The 1900 US Census listed Alfred August Gumper in addition to Christina Maria Mueller, William Gottlieb Gumper, Carolina Gumper, Hermann David Gumper and Emma Gumper in the household of Gottlieb Gumper, in Boeuf Township, Gasconade County, Missouri. |
| Cen-Enum | 12 June 1900 | Alfred August Gumper was enumerated as Alfred Gumper. Single white male, age 5. Son of head of household. Born in November in 1894. He was born in Missouri. His father was born in Germany, his mother in Missouri. |
| Cen-Head
(Enumerated with) | 21 April 1910 | The 1910 US Census listed Alfred August Gumper in addition to Hermann David Gumper and Elda Marie Bopp in the household of Christina Maria Mueller, in Boeuf Township, Gasconade County, Missouri. |
| Cen-Enum | 21 April 1910 | Alfred August Gumper was enumerated as Alfred A. Gumper. Single white male, age 15. Son of head of household. He was born in Missouri. His father was born in Germany, his mother in Missouri. He speaks English. His occupation is farm laborer. General nature of work is working out. He is an employee. He was not out of work on April 15. He was unemployed 0 weeks in 1909. He can read and write. He attended school. |
| Milit | 22 July 1918 | He served in the milititary Serial #3,788,239, MD 10 SN TN Camp Funston, KS to Aug/18; Ambulance Co 239 10 SN TN to Discharge on 22 July 1918 in Hermann, Gasconade County, Missouri. |
| Cen-Head
(Enumerated with) | 5 January 1920 | The 1920 US Census listed Alfred August Gumper in addition to Lillie Maupin in the household of William Maupin, in Boeuf Township, Gasconade County, Missouri. |
| Cen-Enum | 5 January 1920 | Alfred August Gumper was enumerated as Alfred A. Gumper. Single white male, age 25. Hired man to head of household. He can read and write. He was born in Missouri. His father was born in Wurtemburg Germany and his mother tongue is German. His mother was born in Missouri. He can speak English. His occupation is farm laborer. |
| Marriage | 8 November 1928 | He and Lillie Maupin, daughter of William Maupin and Martha Susan Cantley, were married on 8 November 1928.  |
| Cen-Head | 26 April 1930 | Alfred August Gumper is head of household in the 1930 US Census of City of Herman, Roark Township, Gasconade County, Missouri as Alfred Gumper. Married white male, age 35. He rents his home for $8 per month. It is not a farm. He was 33 years old when he first married. He did not attend school. He can read and write. He was born in Missouri. His father was born in Germany, his mother was born in Missouri. He can speak English. His occupation is laborer at a mushroom plant. Enumerated with Alfred August Gumper was Lillie Maupin. |
| Death | 31 March 1988 | Alfred August Gumper died on 31 March 1988 at age 93. |
| Burial | | He was buried in St. James United Church of Christ Cemetery, Stony Hill, Franklin County, Missouri. |
