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Image from Wikimedia Commons
Haldane, Elizabeth Sanderson, 1862-1937
Image from Wikimedia Commons
unknown photographer - Public Domain
Castle, Eduard, 1875-1959
Image from Wikimedia Commons
unknown - Public Domain
Bemberg, H. (Herman), 1859-1931
Image from Wikimedia Commons
Nick Ares - CC BY-SA 2.0
Schneider, John, 1960-
Image from Wikimedia Commons
MoonWaterMan - CC BY-SA 4.0
Mason, John, 1600-1672