- Aarvak, Tomas
- Abrahamsen, Jarl Marius
- Ackerman, C.
- Ackerman, J.
- Adams, Mark
- Addison, Brianne
- Adolph, A.P.
- Adriaan
- Adriaan, J.
- Adrian
- Agassiz, Alexander
- Agerskov
- Aguon, C.F.
- Aidem, J.
- Aidem
- Ainley, D.G.
- Ainley, D.
- Ainley, David G.
- Albert
- Albrecht, C.
- Alcorn, G.D.
- Alder
- Alexander, Boyd
- Alexander, B.
- Alexander, W.B.
- Alexander, H.G.
- Alfaro, Anastasio
- Allen, C.S.
- Allen, J.A.
- Allen, Joel Asaph
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- Allen, J.
- Allen
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- Amerson, A.
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- Ancher
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- Andersen
- Andersen, Truls W.
- Andersen, Truls Wexhal
- Anderson, J.
- Anderson, Bertin W.
- Anderson, S.
- Anderson, Rudolph M.
- Anderson, Elaine
- Anderson, Daniel W.
- Andersson, Nils
- Andresen, Clarence
- Andresen
- Andriesen, A.
- Andros, F.W.
- Andrén, Hugo
- Angiven, Ej
- Angle, J.
- Angle
- Anker-Nilssen, Tycho
- Ansingh, F.H.
- Anthony, H.E.
- Anthony, A.
- Anthony, A.W.
- Anthony, W.
- Anthony, Alfred W.
- Anthony, Alfred Webster
- Anthony
- Antiga, Coleção
- Appleby, George
- Appleton, Joseph W.
- Appleton, J.W.
- Archibald, I.A.
- Ark
- Armistead
- Armstrong, F.
- Armstrong, Janet