Ambrose Donahue, male, age 38, was a merchant policeman in Leavenworth, Kansas whose end of watch came on July 2, 1910. That evening he and three fellow officers moved into the Missouri Pacific rail yards to deal with a trespasser reported in a boxcar. When they attempted to take the man into custody, the suspect opened fire, mortally wounding Donahue before fleeing into the darkness of the yards.
Donahue’s sacrifice is recorded among Leavenworth’s fallen officers and is still remembered locally.
Contemporary reporting described the killer at first as unidentified, and authorities quickly put up reward money to spur tips: the county commissioners offered $100, with the city adding to the fund soon after, underscoring both the urgency and uncertainty that followed the shooting. The early accounts emphasized that the assailant was a “tramp” or boxcar hobo—language typical of the period—who had been prowling the freight cars when confronted by the patrol.
In the months that followed, suspicion sharpened around an itinerant train robber named William LaTrasse. Newspaper coverage later identified LaTrasse as the “alleged slayer” of Merchant Policeman Donahue; by the time that description appeared in print, LaTrasse was already incarcerated for other crimes at the state prison in Lansing and would soon make headlines again as the ringleader of a daring breakout, keeping his name—and the unresolved accusations about Donahue’s murder—in circulation. The record does not show a definitive conviction in Donahue’s killing, but the contemporary press repeatedly linked LaTrasse to the case.
Donahue’s life details—birth and burial in Leavenworth and his age at death—survive in genealogical and memorial sources, while national and local memorial rolls list him among officers fallen in the line of duty. Together they echo the outline of that summer night: a routine railroad trespass call that turned violent in an instant, a city rallying with rewards and patrols, and a lingering suspect whose notoriety grew in the aftermath.
