Mary Catherine Lythgoe was one of George's sisters.
She married Friedrick Wilhelm Emil Porschatis (of Salt Lake City, UT) on 5 Nov 1919 in Salt Lake City, Utah. (The day before her listed birthday- aww...)
Thus, she became Mary Catherine Lythgoe Porschatis.
|Photoshopped and cropped together by me.|
Mary's photo found in the personal albums of Albert Winterrose
Emil's photo found on familysearch.org, Nov 2014, via Marlene Derbidge
Marriage Licence Application: