found: Her How to sing jazz, c1980:t.p. (Barbara Lea)
found: Enc. of pop. mus., 3rd ed.(Lea, Barbara; b. Barbara LeCoq, Oct. 4, 1929, Detroit, Mich.; family name changed to Leacock and she shortened it to Lea on beginning her singing career)
found: German Wikipedia WWW site, Dec. 30, 2011(Barbara Lea; real name: Barbara LeCoq; b. Apr. 10, 1929, Detroit; d. Dec. 26, 2011, Raleigh, N.C.; jazz singer and actress)
found: New York times WWW site, Jan. 3, 2012(in obituary published Jan. 1, 2012: Barbara Lea; b. Barbara Ann LeCocq, Apr. 10, 1929, Detroit; her family later respelled its surname Leacock, which she shortened to Lea early in her career; d. last Monday [Dec. 26, 2011], Raleigh, N.C.; jazz-influenced cabaret singer known for an intense fealty to words and music that resulted in interpretations of masterly subtlety)