How many attempted escapes have been recorded in Alcatraz?

Alcatraz, the infamous island prison, recorded 14 known escape attempts involving 36 inmates between 1934 and 1963. Of these attempts, 23 inmates were caught, six were shot and killed, and two drowned. The most famous escape occurred in 1962 when Frank Morris and the Anglin brothers successfully fled, although their ultimate fate remains unknown. Overall, the escape attempts highlight the desperation of inmates to leave the notorious facility.