Dear Deb,
Do you have the death certificates for Herta Dora Koster, Edward Koster,
or Dorothea? Have you tried to obtain a birth certificate for Herta Dora
Koster?
Have you checked the 1920 Census records? You should be able to
discover if they immigrated from Germany as information pertaining to
this may be found on Census records as well as naturalization
information. If a National Archives branch is near you, you may check
for Census records there at no cost. You may also check for Census
records at the Family History Library of the Mormon Church for a nominal
mailing fee for postage cost of mailing the microfilm. They also have
more information which is free to the public. There are volunteers to
help you at both places.
Do you know which county in New York Herta Dora Koster died? The USGEN
WEB site may offer some help or further advice in your search:
http://www.usgenweb.org/
There are more volunteers working all the time to help you with family
research. They are publishing vital records on the internet and
offering to do look ups.
All best wishes with your research, Grace
Grace Custer Ebneter
Peachtree City, GA
http://members.tripod.com/~EbneterG/index.html