>The Ditlev Carl Frederik Gregersen, are they all the same person?
He is one person.
Don't expeect that all the names will be there
every time you see his name.
>I found a Ditlev Carl Gregersen married to a Hansine Nissen.
Where? and when?
>She, Christiane, my grandmother, came here in 1893 with her brother Hans and Peter.
she came in july 1894 with her sister Nielsine.
Nielsine was going to Boston and Christiane had only
ticket to New York.
They are not in the Danish Emigration Archive - that means
they did not buy th tickets in Denmark.
They were probably bought in USA.
I have the feeling that Christiane knew Peder Sørensen
Leaving in 1894 and having a child in 1895!
Finding the marriage is importent.
>Are you related to these people?
When was she born in 1895?
Have you found the family in the 1900 census?