Theodore was my 2nd Great Grandfather.His children were:
Harry Wilson Ingersoll - in early census he may have appeared as either Jacob or Henry.Born Aug. 1859 Died February 25, 1943.He married Sophia Katherine Lautenschlager June 14, 1888 in Pittsburgh.She was born July 28, 1864 in Chambersburg, PA and died in 1957 in Pittsburgh.
Ida May Ingersoll - Born Aug. 1857. Died June 22, 1926.
Louisa R. Ingersoll - Born Nov. 1861. Died 1902. Married Charles Diess (Dice) who died 1884.She was also referred to on the census as Lotta.
Stewart (Bird) Ingersoll - Born Aug 1865. Died September 13, 1911.
All these Ingersoll's are buried at Henderson Cemetery in Harmarville, PA.
I don't have any record of an Elizabeth, however on the RootsWeb/WorldConnect site there is a family site (JUSTUS - PAINTER FAMILIES)which lists her.My earliest census is the 1860 for their family and it only lists Ida and Jacob who is later listed as Henry & then Harry.
Hope this helps although I see your post is from quite a while ago.