Columbia subject headings:
Gelles family.
Jews--Europe--History.
Jews--Genealogy.
Harvard subject headings:
Europe--Genealogy.
Gelles family.
Gelles, Edward, Dr.--Bibliography.
Gelles, Edward, Dr.--Family.
Genetic genealogy--Jews--Europe.
Griffel family.
Jews--Europe--Genealogy.
Lowe family.
Walls family.
Princeton subject headings:
Gelles family--Genealogy.
Gelles family--History.
Jews--Europe--Genealogy.
Jews--Europe--History.