Unknown Hungarian relative: Picture of the week 6/15/14

This is Frank Mattes a photographer in Philadelphia, PA.  He was born 14 Jul 1881 in Vesprod, Bacs-Bodrog, Hungary,  he came to the US in 1906 and was naturalized in 1914.  He married Magdalena "Lena" Teufel and they had a son names Frank Jr who was born in 1912 but died in 1915, and a daughter Anna Helen Mattes, born in 24 Jan 1917 who was still single and living at home in 1940.  The last record I have found on Frank is his 1942 WWII draft card and he is still living in Philadelphia. 

What I don't know, is how he is connected to my family.