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In page Fort Allen (Pennsylvania):

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In response, Colonel Christopher Truby (in one source, spelled "Trubee") of Pennsylvania's colonial militia erected Fort Allen in Hempstead Township, Westmoreland County in 1774.[3] It is believed that this fort was named for Andrew Allen of the state's then governing body, the Supreme Executive Council. Following its construction, Truby assumed command of the installation. Also known as "Truby's Blockhouse," Fort Allen subsequently became a frontier fort for Dunmore's War in 1774 and then the Revolutionary War.[4]