I was quite surprised this morning when I saw your query at the Stemwede page.
I have compiled an Emigrant Database with all of those who have left this area of Westphalia mainly for America.
The Community of Stemwede has 13 towns who represents today the Community. All the known persons of these towns are to find in my Database.
This is some I can offer for your use:
Hohlt, Hermann Friedrich
born: 7 July 1808 in Wehdem next to # 5
He was married 14 May 1834 at the Evangelical-Lutheran Church in Wehdem with:
Hohlt, née Winkelmann, Charlotte Wilhelmine
born: 16 July 1808 in Oppendorf, parish Wehdem
Hohlt, Johann Friedrich Wilhelm
born: 9 November 1834, place not given
Hohlt, Charlotte Wilhelmine Louise
born: 14 September 1850, place not given
They emigrated with official release documents from Westrup next to # 93 to America, the date of that document:
11 July 1860.
In the same book I've found the following person:
Hohlt, Hermann Friedrich Carl
born: 13 March 1845 in Westrup, parish Wehdem
The date of his relaease document: 18 August 1860.
The other Hohlt persons you're speaking about are not in my Database, they are not to find in any of the emigrant sources for this area.
Please use my e-mail address for your answer, then we can communicate directly: W.Niermann-Wehdem@t-online.de
I've myself distant relatives in Wash. CO., IL, found them after a long break of about 100 years in the 1990ties and visited with them in 1998.
Hope all of this is welcome?