From 1895 Butler County History: Samuel W. McCollough, county commissioner, is a son of William and Elizabeth (Rumbaugh) McCollough. His father was the eldest child of Capt. John McCollough, and was born in Butler county in 1801. He married Elizabeth Rumbaugh and settled in Fairview township, retiring to Millerstown after attaining old age. Mrs. McCollough died in 1878, in her seventy-seventh year, and her husband in 1880. William McCollough had been an active, prominent citizen for many years, held various official positions, and accumulated a large amount of property. Four of his children grew to maturity, as follows: Mary, who married George M. Craig; David S.; Peter, and Samuel W. The last mentioned was born upon the homestead in Fairview township, March 10, 1844, and grew to maturity beneath the parental roof. On August 6, 1862, he enlisted in Company G, One Hundred and Thirty-fourth Pennsylvania Volunteers, under the command of Col. M. S. Quay, the regiment forming part of Humphrey's Division, Army of the Potomac. He did good service at Antietam, Fredericksburg and Chancellorsville, and followed the fortunes of his regiment down to May 24, 1863, when he was honorably discharged from service. In 1864 Mr. McCollough married Catherine Kamerer, a daughter of Daniel L. Kamerer, of Fairview township. She was born June 7, 1846, and is the mother of seventeen children, viz.: Elizabeth C., deceased; George G.; Adrian H.; Louis L.; Mary L.; Emma G.; Maggie J.; John L.; Albert A.; Cora A.; Lillian B.; Florence M.; Merrill; Elmer C., deceased; Clarence B.; Sylvester D. B., and Esther M. In 1869 Mr. McCollough located upon his present farm in Fairview township and ranks among the leading agriculturists of the county. He has always been an ardent Republican, has filled various positions in his township, and was elected a county commissioner in the fall of 1893 by a flattering majority. He is a P. C. of Robert McDermott Post, G. A. R., and is a member of Millerstown Lodge, Number 947, I. O. O. F. Mr. McCollough and wife are members of the English Lutheran church, and he is recognized as one of the progressive and successful citizens of the county.