Brown was apprehended January 1971 (and if I'm reading correctly he was in Berlin, NH). Carmichael was thought to still be "at large", but as we know, he was dead.
Sorry for this sloppy c&p (I don't have full access to the site)
NEW HAVEN (AT') - 'Roger Joseph Brown, who escaped Oct. 5 from custody while being transported from the Walpole (Mass.) Penitentiary . to Hartford., for a court appearance, was'take'n into custody Wednesday !n Berlin, N.H., the Federal Bureau ,'dY.'-' Investigation ; lieui repented. . " '." ' i Escaping at the!- same time was Gustavous Lee jCsrrnicheel ,' 23, of Boston who/. is = still at; loiofio. ■"■ . Botlrhad pleaded ^guilty last July 20 in U.S. District. Court in Hartford to the' Nov* 7, ■ 196S. robbery of-the : west branch. of Hie Hartford ' National Bank S-Trust Co, in Manchester.'. Brown is also under federal indictment for perjury, and' both he rinr! Cai michael 'have been Indicted' by a federal; grand jury in- Hartford. -: on 'charges of escape from f edefal custody, as-sauit on a federal officer and theft of government property, ■The hvo. prisoneTs escaped by overpowering ■ their", guards oh . a highway in Windsor, handcuffing them and a third prisoner to a tree and speeding away, in the 1959 car in . which they were THE BRIDGEPORT TELEGRAM, THURSDAY, JANUARY 21, 1971 being -transported, Brown and Carmlchael ialsb /allegedly . stole a .38-calihcf revolver from of the guavda. The guards' i third prisoner - were' found shortotime later by a tobacco larnier who heard their call, for. help. : Police : found.1 'the ' ca abandoned in Hartford. The FBf said the Berlin, N.H, police helped in apprehending Hrnwn,: 34, of Lewiston, Maine, Further details on the arrest were not -immediately available.
http://www.newspapers.com/newspage/32496505/