Dear Dora,
This is not my direct line, but this family is in the index of "The
Descendants of Paulus and Gertrude Doors Kusters" published by the
Castor Asso. and only costs $30. including postage. It is a bargain as
it is a hard backed book and contains sources you may verify in most
cases.
Page 141 "Rebecca Kester, born 12, 12th month 1738; married Joseph
Webster 1768."
All best wishes, Grace
Grace Custer Ebneter
Peachtree City, GA
http://members.tripod.com/~EbneterG/index.html