@JoshK I don't want to spam your question, so I write it here. If you want to know a bit more, I suggest you to contact the Jewish archive in Budapest (which was actually unified in 1873). Regarding the word landsmen, I hope you know this one.
@Kazibácsi That won't ping him unless he's been in the room recently enough that starting to type @j suggests his username, which is at least now not the case.