Interested in Dutch East Indies - Ophof; Wolff van Wulfing; Kolmus;

there are made some international PORTAL projects, maybe you can find collaborators there who can help you too:

* http://www.geni.com/projects/International-Indonesian-Portal/9228
* http://www.geni.com/projects/International-Dutch-Portal/5657

And if you read, write a/o speak, understand some Dutch you might like it to be member of the
* http://www.geni.com/projects/Portaal-voor-Nederlandstaligen/4077

There are always Dutch geni-users -like myself- who are able to help you finding more information about the family-names you mention. groet, jMVu.

@Tiago

The Indonesian genealogical website Roosje Roos has two results for the name Ophof

Overledene (deceased: Maria Cornelia Ophof (kind) (child)
Plaats: (Place) Batavia
Datum: (date) 24-07-1881

Overledene: (deceased)Johannes Franciscus Ophof ()
Plaats: (place) Soerabaja
Datum: (date) 21-09-1911

Also for Kolmus
Overledene:(deceased) Charlotta Mathilda Calisher overl.: 1929-3-2
Vader: (father( Hendrik Calicher
Moeder:(mother) Carolina Kolmus
Partner: (husband)George van Zalingen
Geboren in: (born in ) Pasoeroean Plaats overl.: died in Soerabaja
Leeftijd: (age)80 jaar
Opmerking(en): comments parents and husband deceased ouders en partner overleden
To see all results http://www.roosjeroos.nl/Zoekscherm

Thank you very much Anne Marie! Great finds! The link is invaluable.

Let me know if I can help you to translate as everything in in Dutch ;)

I found great results searching these old newspapers: http://kranten.kb.nl