Greetings J C Mann,
----- CENSUS -----
Please provide more details on the censuses you found.
Please share Exact Spelling (forename, surname) under which you found along with Series & Roll & Page (I can view an image using Series, Roll, Page if I cannot match a name).
I am assuming you used Ancestry where used the indexes to locate "Jeno Hoitomt" in 1900 (wife Louisa and children); "Jens Hoitomt" in 1930 index (wife Louise); even "Jens Höitomt" (double-dot over O - Swedish-style) arriving in New York. I am assuming you found these too?
I used HeritageQuest (a head-of-household database indexed by Exact spelling of surname as interpreted by transcriber), so I assumed that his name would be mistranscribed or enumerator wrote it incorrectly. (HeritageQuest does not have 1930 for all states.)
I checked all censuses (it took 3 hours) - and discovered:
"HOITOMT, Jens" in 1900;
"HOITONIT, Gens" in 1910;
"HOETOML, Jans" in 1920.
TIP: I finally searched 1920 census by assuming "Illinois", "Cook", "BLOOM", and looking for everyone born in Norway - luckily only 13.
(I am not a subscriber to Ancestry, but used the census index to look for alternate Surname spellings.)
----- DEATH INDEX -----
Are you familiar with the Illinois Secretary of State databases (IL Marriage Index pre-1900; IL Death Index 1915-1950; IL Death Index pre-1915 [incomplete])?
Illinois Statewide Death Index, 1916–1950 shows:
Adolph - Sept 20, 1948 in Decatur, Macon, IL
Jens B - Aug 13, 1948 in Chicago, Cook, IL
Louise (69) - Oct 19, 1935 in Chicago Heights, Cook, IL
(Presumably you already ordered their death certificates either though the respective counties, or Springfield? If not, I can send you links to fee-based researchers I've used that can provide photocopies of DC from microfilm.)
FYI: Decatur is near Springfield in Central Illinois; Chicago Heights is a southern suburb;
Jens might have died in a hospital in Chicago or in Marget's home (as few suburbs had hospitals in 1948).
----- ARE YOU SEARCHING BACK INTO NORWAY? -----
Have you already traced the family through the Norwegian databases (census, emigration) using the patronymic naming method prevalent at that time, as well as a farm name? Or aren't you tracing back that far? (Suggest subscribing to NORWAY-L; I can point you to the Norwegian databases.)
You can reach me through this list, or using my YAHOO email address (uses my login name above). I can send you my findings off-list if you send me your email address.
Ralph from Chicago