Person:Mary Kemerer (3)

The siblings Lucinda, Mary Magdalena, and Catherine married the siblings Reuben, Adam and Jonas Loughner. The parents of Lucinda, Mary and Catherine are cousins so these three siblings are also 2nd cousins to each other.

The children of each couple are, of course, cousins, and also 3rd cousins (!) to the children of the other two couples. 3rd cousins because they share the same great grandparents: Philip Smith (1748-1824) and Catherine Rugh (1758-1828).

Mary Magdalena Kemerer (1834-1857) and John Paul Kemerer (1826-1907) were cousins. Mary Magdalena's niece Mary Ellen Loughner (1869-1957) married John's son Andrew Marshall Kemerer (1870-1949). Mary Ellen's father Jonas' first wife was Catherine Kemmerer who was Mary Magdalena's sister. (And so also John Paul's cousin.)

1. ↑ ^{1.0 1.1 1.2 1.3} Mary Magdaline Kemerer Loughner, in Find A Grave.

   Family Members
   Parents
   Joseph Kemerer
   1803–1851
   Elizabeth Smith Kemerer
   1806–1879
   
   Spouse
   Adam Loughner
   1825–1864 (m. 1851)
   
   Siblings
   Emma Caroline Kemerer Crowell
   1842–1935
   
   Children
   Henry Franklin Loughner
   1854–1913

2.   Mary Magdalena Kemmerer 11 December 1833 – 31 May 1857 • KLGQ-V35, in FamilySearch Family Tree.

   Adam Loughner
   1825–1864 • KLGQ-VS5​​
   Marriage: 21 August 1851
   Greensburg, Westmoreland, Pennsylvania, United States
   Mary Magdalena Kemmerer
   1833–1857 • KLGQ-V35​​
   
   Children of Mary Magdalena Kemmerer and Adam Loughner (3)
   Lydia Anna Loughner
   1853–Deceased • KLGQ-VQ8​​
   Henry Franklin Loughner
   1854–1912 • KLGQ-NMQ​​
   Wilhelm Louis Loughner
   1856–Deceased • KLGQ-VWZ​​
   
   https://www.familysearch.org/tree/person/details/KLGQ-V35