Thanks for that. Access was blocked because I am living in France. Using a VPN I managed to view the site and download the information. This thing of burying a limb, does seem odd, perhaps it's a Polish thing. Visiting cemeteries in Poland I noticed, on family graves, if say, the husband dies, they bury him, erect a stone with his details on, and then put his wife's details on the stone with a gap left for the date she dies. Seems a bit morbid to me. You visit the grave, and each time you are reminded of your mortality.
it is odd to see that the name on the grave record for Alexander is KRUCK and KRUK for John and Stella. The New Jersey marriage index 1912 has Stella Szelajko married to John KRUCK. the US Find a Grave Index 1936 has the burial of John KRUK, Stella is on the New Jersey Death Index as Stefania KRUK. Up to 1939 all the census and Directories use KRUK, the 1940 census uses KRACK. The joys of research.
Thanks for your help.