found: Janáček, L. Slavonic mass [SR] 1965?: labels (George Gaynes, bass)
found: Porter, C. Out of this world [SR] p1973: container (George Jongeyans)
found: Porter, C. Out of this world [SR] 1992: container (George Jongeyans-Gaynes) booklet (George Jongeyans)
found: WW theatre, 1977 (Gaynes, George (né Jongeyans); b. Helsinki, Finland, May 3, 1917; adopted professional name George Gaynes in 1951)
found: IMDb, Feb. 16, 2007 (George Gaynes; b. May 16, 1917, Helsinki, Finland; birth name: George Jongejans)