Ingar was born on May 27, 1841 in Kverrestad parish. Her parents were Måns Christiansson and Elna Andersdotter. She lived with her parents until 1865 when she left their home at Södra Kverristad No 6 for Södra Kverrestad No 11.
She married Per Nilsson on April 9, 1865 and by 1884, when they were living at Ingelstad No 51 in Östra Ingelstad parish, they had 7 living children.
Ingar died on March 1, 1929 at N. Kverrestad No 5 in Kverrestad parish.