Former Rep. Frank Albert Stubblefield (D-Ky.), who represented the state's First District in Congress from 1958 to 1974, died of a lung ailment Friday in Murray. Ky. He was 70.

He had served as vice chairman of the powerful House Agriculture Committee and as chairman of its tobacco subcommittee.

The district located in the western end of Kentucky, is marked by small farms and coal fields, many of them the site of strip-mining.

Mr. Stubblefield, who was described by some as conservative and inarticulate, made news when he was elected to his first term.

He defeated long-entrenched Noble J. Gregory in the Democratic primary in 1958, ending Gregory's 22-year career in the House of Representatives.

In turn, Mr. Stubblefield was defeated in 1974 in the Democratic primary by Rep. Carroll Hubbard Jr., who is now serving his second term in the House.

Born in Murray, Mr. Stubblefield was a graduate of the University of Kentucky. He was in the retail drug business. He had been a member of the Kentucky Railroad Commission for a number of years.

He is survived by his wife, Odessa Bowes Stubblefield, of the home in Murray, three daughters, Mrs Hunt Smock of Murray. Mrs Frank Mason, of Frankfort, and Mrs John Malioss, of Covington: his father Vernon Stubblefield Sr., of Murray; two brothers, Vernon Jr., of Murray and Robert J., of Memophis, Tenn., and five grandchildren.