I looked up so more information about the Klos family.
Their earliest place of origin in Germany was according to bevolkingsregister Obertiefenbach. See http://en.wikipedia.org/wiki/Obertiefenbach for info about it.
Peter Klos is according to this registration born on 22 Mar. 1840 and Dorothea Schuch on 15 Apr. 1840 in Obertiefenbach.
Daugther Catherine is born on 6 Apr. 1864 in Leidzel.
Son Anton on 11 Dec. 1868 in Kirn.
Son Wilhlem Rudolph is born in Kirn on 15-09-1876.
There is no record about Rudolf Klos in Amsterdam.
Peter Klos, his wife and 3 sons went in February 1889 to London. The daugther stayed in Amsterdam and went with Johan Wilhelm Adolf Klos * 2 May 1882 in 1885 to another address in Amsterdam (code 541/89). His birth is registered 03-05-1882 (4-126). See his birth record #4353 on
https://familysearch.org/pal:/MM9.3.1/TH-1-10842-26030-22?cc...
More later