David Elmer Hocker was listed as a baker in the 1910 US census and as a baker for the Butter Pretzel Baking Co. in 1930. According to the above photo, David Hocker was the proprietor of the Butter Pretzel Baking Co. in Harrisburg. His sons were also employees of the company in 1930.
The Christian Hoover homestead, possibly in Karthaus or Covington township, Clearfield county, Pennsylvania. The exact location is not known.