Lucile Sanderson Connally, 90, the widow of two United States senators of Texas and a resident of Washington since 1909, died Saturday at her home in Washington. She had a heart ailment.

Mrs. Connally was a native of Texarkana, Tex., and came to Washington in 1904 to attend the old Belcourt Seminary. While studying here she was escorted on tours by a young Texas bachelor-congressman, Morris Sheppard. After having attended Randolph-Macon Women's College in Lynchburg, she returned to Washington and married the congressman in 1909.

Sheppard was a member of the House until moving to the Senate in 1913, where he served until his death in 1941.A year after her husband's death, she married Sen. Tom Connally (D-Tex.) who had been widowed in 1935. Sen. Connally died in 1963.

During these years, some of the most turbulent and eventful in American history, Mrs. Connally had a front row seat on the deliberations of the Senate that shaped the nation's policy for years to come.

Mrs. Connally was a member of the First Baptist Church of Washington. She also belonged to the Daughters of the American Revolution, the Colonial Dames of America, and the Daughters of the Republic of Texas.

She was active in the Senate ladies Red Cross unit and the Senior Congress Club. During her years in Washington she was known for her family histories and biographies on which she worked, her collection of snuff boxes, and for never drinking at Washington cocktail parties.

Survivors include two daughters by her first marriage, Lucile Keyes of Potomac, and Susan McGillicuddy of Fort Myers, Fla., and 13 grandchildren.