Oscar Stanton DePriest was elected to the Cook County Board in 1904 and in 1928 he was elected to Congress to fill a vacancy due to the death of Rep. Mann of Chicago. DePriest was the first African-American elected from any northern state in the 20th Century. He was a Republican. In 1929, First Lady Mrs. Grace Hoover, who was a devout Quaker, invited Mrs. DePriest to come to a reception and lunch at The White House for congressional wives. But when southern wives objected and threatened to boycott the event due to the race of Mrs. DePriest, Mrs. Hoover persisted and said she intended to invite Mrs. DePriest no matter what and then the southern ladies boycott fell apart.