Blumberg
Ancestral tree of central European origins. Includes Adus history and family photographs.
www.familytreemaker.com/users/b/l/u/Andrew-Blumberg/

Blumberg
Family history of Mira Claire Blumberg including publications, reports and tree.
familytreemaker.genealogy.com/users/b/l/u/Mira-Claire-Blumberg/

Blumberg Family: Poland
Ancestors and descendants of Abraham Blumberg and Rebecca Kaplan. Includes Bielsk Podlaski and Ellis Island connections, compiled by Andrew Blumberg.
www.geocities.com/blumbergcousins/

Blumberg-Dehoney
Family database as maintained by Tom Blumberg.
worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:2799272