Annie Beatrice van der Biest Thielan Wetmore

Bea Wetmore passed away "unexpectedly but peacefully" in her home in Silver Spring, Maryland on 1 March 1997, at the age of 87.

Bea was first listed in 1979 as a significant financial supporter of the American Ornithological Society, (formerly known as the American Ornithologists' Union (AOU)), and is still mentioned as a lifetime Guarantor benefactor. She also regularly gave very generously to other organizations such as the AOUs Wetmore Fund and the Wetmore Fund of the Division of Birds at the Smithsonian National Museum of Natural History.

After Alex died in 1978, Bea devoted much of her time toward compiling ornithological records about Panamanian fauna, extracting data from Alex's field journals as well as the four volumes, Birds of the Republic of Panama.

For the couple's last collecting expedition, they went to Bea's former Caribbean homeland in 1969, which, according to her obituary, "resulted in a nice series of specimens from the island of Bonaire."

She became a naturalized citizen of the United States in August 1944.

Annie Beatrice van der Biest Thielen Wetmore (11 January 1910 – 1 March 1997), widely known as Bea Wetmore, was a Curaçaoan-American ornithologist and benefactor.

She was born Annie Beatrice van der Biest Thielen in 1910 on the Caribbean island of Curaçao, which is a territory of the Netherlands. Bea was a translator conversant in several languages including Dutch, English, Spanish, and Papiamento, the regional dialect of the Dutch West Indies. She worked as a secretary/translator for several Dutch government entities in Washington, D.C., in Sydney, Australia during World War II, and the World Health Organization.

She met ornithologist Alexander Wetmore (1886–1978) in 1944 and they married in 1953, not long after he retired as the sixth General Secretary of the Smithsonian Institution. With his retirement, which allowed Alex (assisted by Bea) to conduct full-time research, they made collecting expeditions to Panama every year, with the last one taking place in 1966. Alex had begun these trips in 1944. As a result of the expeditions, the couple worked closely on the four volumes of Birds of the Republic of Panama, published by the Smithsonian Institution between 1965 and 1984 (the last volume appeared after Alex died). Each tome lists Alexander Wetmore as the only author or first of several authors. While Bea is not listed as an author on the finished publications, her work is acknowledged on field notebooks, such as Alex's 1955 Panama notebook.