By searching the Ellis Island database for people going into New York,
one finds the following suggested variations for Danselman
Danzelmann
Denselmann
Danzelman
Donzelmann
Dankelmann
Dunselmann
Dankelman
Donszelman
Dunzelmann
Dankalman
Denkelman
There are 3 x Dontzelman females on the IGI 1738 to 1758 - Westphalen, Prussian
An Edker DANSELMAN is on US passenger lists at some stage.
And there are a few DANSELMAN appearring in the US Census over various years.
On the UK sugar bakers dtabase are a couple of entries which maybe worth pursuing:
DUNSELMANN O.H of Hanover - - to Dover 1851 Metzner - Shipping Lists
DUNZALMANN C foreign (age 29) (pan man) Back Rd London 1841 - 1841 census HO107 /703 /9 /12
The one in 1841 is interesting and I think, worth pursuing
A8888cest**ry list him as being age 20 and born in Ireland - but this is the transcript I see:
1841: Back Street, St Paul Shadwell, Tower Hamlets, Middlesex (which is under the Stepney Reg. District)
George _RAT? 31, Salesman - N
Phoebe _RAT? 26, F.S. - N
Frederick _RAT 9 - Y
Fredrich (or Fredrick) BESNY-----?? 33, Sugar Refiner - F (Foreign Born)
C. DUNZELMANN 29 (male), Pan Man - F
John BLANK 27, Blacksmith - F
H. STEMMERMANN 27 (male) Refiner - F
Fredrich GRUSS 25, Refiner - F
Plus 14 more males in the same dwelling, all Foreign born, all Refiners
This C DUNZELMANN is born abt 1812 (suspect the age 29 is as returned, but if his age is rounded he could really be as old as abt 34 (born abt 1807).
Cheers
AMBLY