have you tried
john@hodgelodge.com he has swedish plym links with a john andrews plym born 1878 sweden.my plim links go back in a directline to a marriage in 1599 egham surrey england.i have often found that the "y"& the"i" get mixed up in my family.as i am doing a one nane study on pl(i/y)ms prehaps you could keep me informed as to the results of your plym research?if i can be of any help please email me.one other thought there is a jewish plym family living in new york i belive.any conections?