Mary Storer Potter — Became Longfellow's first wife in 1831 and died four years later
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=5356473

Longfellow House — Longfellow National Historic Site, also known as the Vassall-Craigie-Longfellow House, in Cambridge, Massachusetts. This house was George Washington's headquarters for 10 months in the Revolutionary War, and noted poet Henry Wadsworth Longellow's house for nearly fifty years.
Photo Credit: By Daderot at en.wikipedia - Originally from en.wikipedia; description page is/was here. Original uploader was Daderot at en.wikipedia, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2929917

Henry Wadsworth Longfellow — Photo by Julia Margaret Cameron, 1868
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=836438

Gold —
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Silver —
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Qin Shi Huangdi, first emperor of China — Portrait painting from an 18th-century album of Chinese emperors' portraits
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=51527505

Mercury (Hg) in liquid form —
Photo Credit: By Bionerd - Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=4972709

Symbol for Mercury — The symbol for the planet Mercury (☿) has been used since ancient times to represent the element
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=688876

Mercury —
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bust of Constantius II —
Photo Credit: By Jebulon - Own work, CC0, https://commons.wikimedia.org/w/index.php?curid=29740542

Macarius of Jerusalem — cropped from Helena of Constantinople and the finding of the True Cross with Macarius of Jerusalem by Giandomenico Tiepolo. Oil on canvas (1745 -1749)
Photo Credit: By Didier Descouens - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=53012225