The given date was a Thursday.
September 21st, 1930 fell on a Sunday.
It was a Saturday.
Sept. 11, 1930 was on a Thursday.
The last day of September can be any day of the week
Septemper 4th 1930 was a Thursday.
Father's Day in 1930 was on September 7, on a Sunday.
6 April 1930 was a Sunday.
March 30, 1930 was a Thursday.
July 10th 1930 was a Thursday.
August 25 1930 was a Monday.
13 December 1930 was a Saturday.
June 15, 1930, was a Sunday.