| Name | | Mary Latitia Garrett was also known as Mary L Underwood. |
| Name | | She was also known as Mary L Garrett. |
| Name | | She was also known as Mary L Garret. |
| Name | | She was also known as Mary Underwood. |
| Name | | She was also known as Mary Garrett. |
| Name | | She was also known as Mary Latitia Underwood. |
| Name | | She was also known as Mary Lutitia Garrett. |
| Burial | | She was buried in Athens, Menard, Illinois, USABG. |
| Person Source | | She had person sources.1 |
| Birth | about 1868 | She was born about 1868 in OhioBG. |
| Birth | about 1869 | She was born about 1869 in OhioBG. |
| Birth | January 1869 | She was born in January 1869 in OhioBG. |
| Birth | 29 January 1869 | She was born on 29 January 1869 in OhioBG. |
| Birth | about 1870 | She was born about 1870 in OhioBG. |
| Residence | 1870 | She lived Residence Post Office: Loramie in Dinsmore, Shelby, Ohio, USABG, in 1870. |
| Residence | 1880 | She lived Marital Status: Single; Relation to Head: Daughter in Saint Joseph, Champaign, Illinois, USABG, in 1880. |
| Marriage | 5 September 1888 | Sherman Underwood and she were married on 5 September 1888 in Sangamon, Illinois, USABG.1 |
| Residence | 1900 | She lived Marital Status: Married; Relation to Head: Wife in Fancy Creek, Sangamon, Illinois, USABG, in 1900. |
| Residence | 1910 | She lived Marital Status: Married; Relation to Head of House: Wife in Jackson, Callaway, Missouri, USABG, in 1910. |
| Residence | 1920 | She lived Relation to Head: Wife; Residence Marital Status: Married in McCredie, Callaway, Missouri, USABG, in 1920. |
| Residence | 1930 | She lived Marital Status: Married; Relation to Head: Mother-In-Law in St Louis, St. Louis (Independent City), Missouri, USABG, in 1930. |
| Death | 25 January 1952 | She died on 25 January 1952 at age ~84 in Athens, Menard, Illinois, USABG. |