“Severe thunderstorms in the Upper Midwest spawned fifty-one tornadoes killing 256 persons and causing more than 200 million dollars damage. Indiana, Ohio and Michigan were hardest hit in the “Palm Sunday Tornado Outbreak”. Although no F5’s were officially reported, at least 22 were rated as F3 or F4. This is the third deadliest day for tornadoes on record, behind the Super Outbreak of 4/3/1974, and the outbreak that included the Tri-State Tornado of 3/18/1925.
Richmond and Glen Allen, Virginia Weather
Apr 12, 1965, page 1 – The Muskegon Chronicle at Newspapers.com