“A Biographical History of Lancaster Co. Being a History of Early Settlers and Eminent Men of the County” by Alex. Harris, 1827 Lancaster, Pa.: Elias Barr & Co., 1872
Pg. 393, McGOWAN FAMILY.JOHN McGOWAN emigrated from Ireland about the time of the last war with England, when quite young.He was an enterprising man who rose from being a clerk to an extensive manufacturer of iron in Sadsbury Twp.He was united in marriage about he year 1830 with CATHARINE, the daughter of WILLIAM and SARAH KNOTT, and settled on a farm which he purchased in the valley.He died in the year 1851, leaving his widow with nine sons and five daughters, who are all living at the present time (except one which died in infancy).The family now own most of the original tract of Moses Musgrove in the valley.They are the well-known, highly respectable McGOWAN family, among whom are WILLIAM McGOWAN, ESQ., JOHN McGOWAN and JOSEPH McGOWAN, late assistant assessor of internal revenue.