Columbia subject headings:
Explorers--Newfoundland and Labrador--Labrador--Biography.
Hubbard, Leonidas, 1872-1903--Travel--Newfoundland and Labrador--Labrador.
Labrador (N.L.)--Discovery and exploration.
Harvard subject headings:
Explorers--Newfoundland and Labrador--Labrador--Biography.
Hubbard, Leonidas, 1872-1903--Travel--Newfoundland and Labrador--Labrador.
Hubbard, Mina--Travel--Newfoundland and Labrador--Labrador.
Labrador (N.L.)--Discovery and exploration.
Women explorers--Newfoundland and Labrador--Labrador--Biography.
Princeton subject headings: