September 13 1959 was on a Sunday.
13 February 1959 was a Friday!
April 13 1959 fell on a Monday.
January 13, 1959 fell on a Tuesday.
June 13, 1959 fell on a Saturday.
Sunday
Friday.
Wednesday
Friday
It was a Thursday.
October 13th 1959 was a Tuesday.
April, 13th, 1959, was a Monday.
Sunday. You can find a day of week calculator at this site. Just enter in the date and it will calculate it for you: http://www.searchforancestors.com/utility/dayofweek.html