The name Henry was not a common Dutch name back then. It is likely that he was called Hendrik, Hendrikus, Henrikus, Hendricus or Henricus.
If you look at the Ellis Island records (http://www.ellisisland.org/search/matchMore.asp?FNM=HEN*&...
) there is a candidate:
* on July 31st, 1906, Hendrik Balk, 46 years old, married, from Amsterdam, arrived at Ellis Island.
* On July 27th, 1909, Hendrik Jan Balk, 48 years old, married, from Amsterdam, arrived at Ellis Island.
* On March 15th, 1921, Hendrik Jan Balk, 60 years and 7 months old, married, from Grand Rapids, arrived at Ellis Island.
In 1947, a census was held in the Netherlands. On http://www.meertens.knaw.nl/nfb/detail_naam.php?nfd_naam=Bal...
you can see that the surname Balk was most common in the provinces of Noord-Holland, Utrecht, Groningen, Gelderland, and in the city of Amsterdam.
At the website of the archive of Amsterdam, I found a reference to a H.J. Balk, born June 15th 1860 and living in Amsterdam.
How certain are you about the surname Rosman and the fact that Marie was born in the US?