(FORTUNE Magazine) – A fortnight ago, we were dwelling heavily on the curious unwillingness of the New York Times to label certain congressional Democrats ''left wing.'' Having raised this prickly subject, we feel it would be less than honorable for us not to haul off and name a number of House lefties. We begin by distinguishing between (a) those who dependably vote the liberal line in Congress and (b) leftists who have gone beyond traditional liberal concerns and evidenced a yen to cuddle up with Marxist-Leninist countries and organizations. As you might expect, the two lists overlap quite a bit; still the Democratic Congressman at the top of our liberal list -- John Lewis of Atlanta -- has shown no interest that we know of in the Marxists. It was Lotus 1-2-3 that fingered Lewis as the House's leading liberal. To get Lotus going, we created a database, using the scores (from 0 to 100) published by three liberal organizations. The three: Americans for Democratic Action (ADA), the AFL-CIO's Committee on Political Education (COPE), and the American Civil Liberties Union (ACLU). We took the average of their scores for 1988 as our measure of gross liberalism, and this average minus any points awarded by the American Conservative Union (ACU) as a measure of net liberalism. Finally, we invoked the Data Sort command in 1-2-3 to rank the guys from top to bottom on net liberalism. Lewis got 100 from ADA and COPE, 96 from the ACLU, and a goose egg from ACU, giving him a sensational winning score of 98.67, slightly above body temperature. Altogether, 52 Congresspersons, all Democrats, were above 80; 22 were 95 or higher. The 52 House Democrats scoring above 80 on net liberalism include a fair number who might plausibly be called leftists. George Crockett of Detroit (net liberalism score: 91.33) has a long history, previously mentioned in this space, of affiliations with the U.S. Communist Party. A sizable number of Democrats have endorsed programs to raise money for the Marxist guerrillas in El Salvador. The Council for Inter-American Security, which relentlessly records such endorsements, recently published a list of 26 Congressmen who have delivered them; the list included Crockett, Ron Dellums of Berkeley (97.33), and Mervyn Dymally of Los Angeles (95). Dellums is arguably the most leftist of all. He has been an admirer of Cuba's Castro, Nicaragua's Ortega, and Grenada's Maurice Bishop, who ran the New Jewel movement there until shortly before the American invasion. After the invasion, it turned out that a Dellums staffer had been corresponding with Bishop about her boss's plans to change U.S. policy toward Grenada. Moving right along, George Miller of Contra Costa County in California (89.67) has supportively met with Sandinista leaders in Nicaragua. Robert Kastenmeier of Wisconsin (89.67) backed a Madison ''sister city'' project with a rebel-held town in El Salvador. John Conyers of Detroit (94) is a backer of the pro-guerrilla New El Salvador Today. The World Peace Council, an undisputed Soviet front organization, has listed Dellums, Conyers, Dymally, and Don Edwards of San Jose (98) among its backers. We could go on this way for quite a while, but it gets monotonous. Anyway, it's the Times's turn.