I believe I found your Krueger family in the 1900 Kings Co (Brooklyn Ward 28) NY census. It has the family as -
Frederick b Mar 1855 Germany
Bertha b Jan 1858 Germany
Frank b Jan 1883 Germany
Mary b Jan 1886 New York
Dora b Apr 1894 New York
In the 1910 and 1930 census there are several Frank Krueger's listed - IA, WI and IL. If you know who his wife was you should be able to find him. However, don't be surprised if instead of being listed with a birthplace of Germany that he's shown as being born in New York. The ones in IA, WI and IL have Germany. I did see one listed with birth in New York living out in Washington state in 1930.
As for as being related to the Krueger family I'm searching for, I doubt it. My Henry Krueger married into my one family line. The marriage was in Nebraska where his wife's family had moved to just before or just after 1880. The area was heavily populated with German families and I suspect that the Krueger family had settled there around the same time. If there is any connection, then it would have to go back to Germany and that's if the two families came from the same area in Germany.
Sorry I can't be of more help. Good luck with your research.