Also, the name Yuhas has also been seen as Juhas and Yuhaus and Poljak/Pollack has been recorded as Pollak in the 1920 MI census.
Have found out that Mary was born Dec. 1877 in Austria, Hungary, and John in perhaps June of 1877, also Austria, Hungary. They both came to US in 1893 and married in Lyndora, PA, in 1895. Mary's mother's maiden name was Dandar.
Would love to hear from family and will gladly share info.