Charles J. Steinmann (d. 1918), died in World War I. Steinmann grew up at 109 Greenpoint Avenue, in Woodside, and served in Company F of the 321st Infantry Division. He died of pneumonia on November 1, 1918, just ten days before the Armistice.
New York City Department of Parks & Recreation. (n.d.). Steinmann Triangle. Official Website of the New York City Department of Parks & Recreation. https://www.nycgovparks.org/parks/steinmann-triangle/history
Urban Areas.net. (n.d.). Steinmann Triangle (Queens, NY). https://urbanareas.net/info/places/queens/parks-and-playgrounds/steinmann-triangle-queens-ny/
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