We have no information on any middle names of members you inquired about.It is doubtful that any had middle names in that era, hence, the nicknames, example “Weaver” “Fuller” etc. It wasn't until later that middle names became fashionable, many times taking an initial from the mothers maiden name.
According to the Fretz Family Histories (FFH),Joseph (1794– 1854) did not have a son named Isaac.However, he did have a son named Isaiah (1839-1864).Isaiah was a teacher.He enlisted in the Union army and advanced to the rank of Sgt. Major.During theengagement of troops at White Oak Swamp, he was severely wounded and died(FFH/Vol. I/Pg. 120).
Fretz Family Association Mary Fretz Shively 8708 Easton Road Ottsville, PA 18942 610 847-5361