After searching the database I came across this young boy (Aba Abowicz) born in 1929 and his address is also SULZF 37 8.
Then secondly I found a young boy named Aba Eljasz Abowicz who was born in 1927 and his addresses were also Am Bach 19 16 and Sulzf 37/8. It said that he was deported to some sort of camp on March 15, 1942. This information actually did make sense if one were to think about it more and more. It was written in Rywka Abowicz’s profile that she moved to Am Bach in 1941, which might have meant that Aba Eljasz also moved at that time if the two were related. Since Aba Aljasz did not get deported till 1942, this would have given the possibility to update his profile to the new address (Am Bach 19 16). All this did also make sense to why Aba Eljasz would have signed his name as “Eljasz” on the school card; he had a brother who had the same name as him.