b. 30 January 1878, d. 24 May 1965
| Birth | 30 January 1878 | Effie Louise Timmons was born on 30 January 1878 in Kentucky. |
| Cen-Head
(Enumerated with) | 26 June 1880 | The 1880 US Census listed Effie Louise Timmons in the household of Garret Timmons, in Petersburg, Webster County, Kentucky. |
| Cen-Enum | 26 June 1880 | Effie Louise Timmons was enumerated as Effie L. M. Timmons. Single white female, age 1. Daughter of head of household. She was born in Kentucky. Her mother and father were born in Kentucky. |
| Marriage | 31 May 1896 | She and William Henry Larsen, son of Martin Luther Larsen and Louisa Edwards, were married on 31 May 1896 in Stoddard County, Missouri. |
| Cen-Head
(Enumerated with) | 12 June 1900 | The 1900 US Census listed Effie Louise Timmons in addition to Edgar M. Larsen and Leslie Larsen in the household of William Henry Larsen, in Castor Township, Stoddard County, Missouri. |
| Cen-Enum | 12 June 1900 | Effie Louise Timmons was enumerated as Effie Larsen. Married white female, age 22. Wife of head of household. Born January 1878. Married 4 years. Mother of 3 children, 3 still living. She was born in Kentucky. Her mother and father were born in Kentucky. She can read, write and speak English. |
| Cen-Head
(Enumerated with) | 5 May 1910 | The 1910 US Census listed Effie Louise Timmons in addition to Edgar M. Larsen, Leslie Larsen and Charles W. Larsen in the household of William Henry Larsen, in Castor Township, Stoddard County, Missouri. |
| Cen-Enum | 5 May 1910 | Effie Louise Timmons was enumerated as Effie M Larsen. Married white female, age 32. Wife of head of household, married 13 years. She the mother of 5 children, 5 still living. She was born in Kentucky. Her mother and father were born in Kentucky. She can speak English. She has no occupation. She can read and write. |
| Cen-Head | 16 January 1920 | Effie Louise Timmons is head of household in the 1920 US Census of Castor Township, Stoddard County, Missouri as Effie Larsen. Widowed white female, age 41. She owns her home, it is mortgaged. She can read and write. She was born in Kentucky. Her mother and father were born in Kentucky. She can speak English. Her occupation is farmer on a general farm. She works on her own account. Her farm is number 100 on the farm schedule. Enumerated with Effie Louise Timmons was Leslie Larsen and Charles W. Larsen. |
| Death | 24 May 1965 | Effie Louise Timmons died on 24 May 1965 at age 87. |
| Burial | | She was buried in West Antioch Cemetery, Stoddard County, Missouri. |