1850 United States Federal Census
Birth Year: abt 1836 in Pennsylvania
Home in 1850: Sewickley, Westmoreland, Pennsylvania
Household Members: John C Benford (33), Mariah Benford (36); Martha E Benford (3), Eliza Benford (2); Christopher K Pool (22), William Baker (21), Christopher Billhimer (14), Mary Pool (17). Was he orphaned, was the head of the household a relative, or was he a boarder? I don't know.

1860 United States Federal Census - living in Butler Twp., Butler Co., Iowa: Christopher Billhimer (25), b. abt 1835 in Pennsylvania; Post Office: Leoni. Wife: Malinda Billhimer (17), b. Illinois abt 1843.

U.S. Civil War Soldier Records and Profiles about Christopher Billhimer:
Age at enlistment: 29
Enlistment Date: 22 Oct 1864
Rank at enlistment: Private
State Served: Iowa
Survived the War?: Yes
Service Record: Enlisted in Company C, Iowa 15th Infantry Regiment on 22 Oct 1864. Mustered out on 24 Jul 1865 at Louisville, KY.
Sources: Roster & Record of Iowa Soldiers in the War of Rebellion

1870 United States Federal Census
Birth Year: abt 1836 in Pennsylvania
Home in 1870: Butler, Butler, Iowa
Post Office: Butler Center
Household Members: Christopher Bilheimer (34), wife Sarah Bilheimer (25); children Mary E Bilheimer (10), Sarah E Bilheimer (8), Clara Bilheimer (2). [If first wife Malinda died in 1863, then Mary E and Sarah E must have been her daughters; then Clara must be the daughter of second wife Sarah. Also spelling on tombstone is Billhimer.]

1880 United States Federal Census
Birth Year: abt 1834 in Pennsylvania
Home in 1880: Butler Twp, Butler Co., Iowa
Married to Sarah E. Billhimer
Father's Birthplace: Virginia
Mother's Birthplace: Virginia
Occupation: Farmer
Household Members: Christopher Billhimer (46), Sarah E. Billhimer (35); Sarah E. Billhimer (18) keeping house, Clara Billhimer (12).

1900 United States Federal Census - living in Clarksville, Butler Co., Iowa: Christopher Billhimer (64), b. Jul 1835 in Pennsylvania, Race: White; Father's and Mother's birthplace: Virginia; Spouse's Name: Sarah Billhimer (53) b. June 1846. Marriage year: 1866; Marital Status: Married for 34 years; Occupation: (farmer); Daughter Myrtle Billhimer (18) b. Mar 1882.

From Ancestry.com Family Trees: 8 sources, 7 records
Christopher Billhimer
Birth: 4 Jul 1835 in Bethany, Westmoreland, Pennsylvania
Death: 1 Jul 1903 in Clarksville, Butler, Iowa, USA
Father: John Billheimer (1788-1853)
Mother: Barbara Brenneman (1795-1861)
1st Spouse: Melinda H Hodgson (1843-1863) - Married 4 Mar 1860; Children: Mary Ellen (1860-1941), Sarah Elizabeth (1862-), Infant (1863-).
2nd Spouse: Sarah Eliza Probasco (1845-1925) - Married 5 Nov 1865; Children: Clara (1868-1947), Myrtle Blanche (1882-1954).