| Burial | | Iva Lillie Mercer was buried in Rippey Cemetery, Rippey, Greene, Iowa, USABG. |
| Person Source | | She had person sources.1 |
| Birth | August 1871 | She was born in August 1871 in Chatsworth, Livingston County, Illinois, USABG. |
| Residence | 1885 | She lived in Washington, Greene, Iowa, USABG, in 1885. |
| Marriage | 1 November 1893 | George J McCain and she were married on 1 November 1893 in Rippey, Greene, IABG.2 |
| Residence | 1900 | She lived Marital Status: Married; Relation to Head of House: Wife in Washington, Greene, Iowa, USABG, in 1900. |
| Residence | 1 June 1905 | She lived Marital Status: Married; Relation to Head of House: Wife in West Salem, La Crosse, WisconsinBG, on 1 June 1905. |
| Residence | 1910 | She lived Marital Status: Married; Relation to Head of House: Daughter in Washington, Greene, Iowa, USABG, in 1910. |
| Residence | 1920 | She lived Marital Status: Married; Relation to Head of House: Wife in Washington, Greene, Iowa, USABG, in 1920. |
| Residence | 1 January 1925 | She lived Marital Status: Divorced ; Relation to Head of House: Head in Rippey, Greene, Iowa, USABG, on 1 January 1925. |
| Residence | 1930 | She lived Marital Status: Divorced; Relation to Head of House: Mother in Washington, Greene, IowaBG, in 1930. |
| Death | 1956 | She died in 1956 at age ~85 in Sioux City, Woodbury County, Iowa, USABG. |