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he lieder pend — atch ED §TATES GOV NT Monorandiam TO : Mr, Evang) | DATE: 6/18/62 mm t J) | F From : A. B, Eddy: ae supject: FRANK LEE MOBBIS - FUGITIVE 4 JOHN WI GLIN ~ FUGITIVE RENCE ANGLIN — a gz. sce PRISONER ° - /~ Wg San Francisco Office obtained detailed Qotormation an inmate at Alcatraz, concerning ia é. revealed in considerable detail e began to actively seek out a means of escape. general Knowledge among the inmates that above the «Hell Slocks were eight ventilator holes to the roof which t been used in several years. These holes had been éovered up with cement; however, BPP notices about.ten months go that one ventilator hol@ was nov cemented.., He mentioned the possibility of escape to inmate John Anglif, throngh - We ventilator area, by gaining access to the ftility . corridor back of the cell blocks. The cells of the “Anglin brothers were adjacent to each other. The celfs of and Morris were also adjacent to each other. With “the use of sharpened spoons fashioned like screwdrivers, they dug holes into the cement which enabl them to remove a ventilator grill in the back of their cells to gain access to the ‘ f. utility corridor. The escapees operated as a team with one 7 watching while the others worked. They usually worked from - 15:30 p.m. to 9:30 p.m, Ag a hole was comleted, it would he =~ eee SSS ep SS i ed plugged with toilet paper and soap and then painted. A false cardboard front was made to fit a cement slab which was “ oo aay removed. They also made a false ventilator ope ] “gnetos 6 beg F a cy a 7 _ ‘ r, Enclosures Re : wae 's 1 rea) ky é “s 1 - Mr, Delaach MG ee SF: ABE: swb f\-7¢ (7) se OF 335