Category:Franklin Pierce Geyer

**Franklin Pierce Geyer**
	(1853-1918) American police detective
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Date of birth	28 July 1853; Philadelphia
Date of death	4 October 1918; Philadelphia
Cause of death	1918-1920 flu pandemic;
Place of burial	Hillside Cemetery;
Country of citizenship	United States of America;
Occupation	detective;
Notable work	The Holmes - Pitezel Case;
Authority file
	Q5757529; ISNI: 000000004153654X; VIAF ID: 56191667; Library of Congress authority ID: no95003836; J9U ID: 987007384035105171
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Frank Geyer (July 28, 1853 – October 4, 1918) was an American police detective from Philadelphia, Pennsylvania, best known for his investigation of H. H. Holmes, one of America's first serial killers. Geyer was a longtime city employee of the Philadelphia Police Department, and in 1894 was assigned to investigate the Holmes-Pitezel Case.