In addition to the info in the JewishGen Manifest Markings Infofile that Laurie pointed you to, here are a couple of observations that I've made during my naturalization research that might help you:
Regards, David Oseas Researching:
- unfortunately, there isn't an index that cross references the number in the naturalization verification marking (the Certificate of Arrival request) and petition number
- the number before the dash will help you pinpoint the district in which the person filed for naturalization
- the naturalization verification date can help you locate a possible naturalization in a naturalization index collection. While there are no hard & fast rules regarding dates, the majority of the cases that I've researched have a CofA date from 2 weeks to 4 months prior to filing their petition and the petition date is 4 months to 1 year prior to their citizenship certificate date (which is the date shown in naturalization indexes). So, I would look in an index for a naturalization with a date from 4.5 months to 1.5 years after the verification date. Of course, there are exceptions: in one case, the CofA verification occurred 6 months after the petition was filed.
- only about 50% of the folks that I've researched that were issued a 505 form rather than a CofA ever went on to successfully naturalize (and none of the folks that had received a 404 ever naturalized).
HYMAN/HEYMAN/HEIMOWITS/CHAJMOVITS: Zemplen-Dobra, Hungary > New York; KLEIN: Satoraljaujhely (Ujhely), Hungary > New York > Los Angeles
KRONOWITH: Hungary > New York; OSEAS/OSIAS/OSIASI/OZIAS: Iasi, Romania > Chicago > Milwaukee > Los Angeles
SCHECHTER/SHEKTER: Kishinev, Bessarabia > New York; SHERMAN: Iasi, Romania > New York > Los Angeles
STRUL: Iasi, Romania > Haifa, Israel; WICHMAN: Syczkowo (Bobruisk), Belarus > Milwaukee > Los Angeles