Hatton, Stephen B.. ( 2017) Analyzing an associate network and an indirect evidence network to discover Martha “Patsy” (McNabb) Wynkoop’s father and to explore his pedigree. The Journal of Genealogy and Family History. 1 (1). pp. 1-17. doi.org/10.24240/23992964.2017.030104 : accessed 22 October 2019.