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Jim Harbaugh listed coaching staff and winning tradition among the reasons he chose Michigan in 1982.

(Melanie Maxwell | The Ann Arbor News)

ANN ARBOR - When Jim Harbaugh arrived at Michigan in 1982, his favorite sports personality was Bobby Knight and AC/DC was at the top of his music list.

Those are a few of the revelations from a sports information office survey Harbaugh filled out more than 30 years ago, which was tweeted by Michigan's Bentley Historical Library Thursday afternoon.

Here are some highlights from the survey filled out by James Joseph Harbaugh:

* Harbaugh had a .417 batting average and 5-2 record playing baseball in 1981.

* As a high school senior, he averaged a double-double in basketball at 19.8 points and 10.3 rebounds per game.

* Harbaugh's listed golf and history among his hobbies and outside interests.

* "The Rockford Files" was Harbaugh's favorite TV show and his favorite actor was James Garner.

* Harbaugh's favorite teams were the Western Michigan Broncos, the San Francisco 49ers and Detroit Tigers.

* Rock music, specifically AC/DC and Sammy Hagar, was his favorite.

* Harbaugh's greatest sports memory was playing in the high school basketball state playoffs.

* Stanford, Wisconsin and Arizona were among the other schools he considered attending.

* The reasons Harbaugh chose Michigan were "Coaching staff, winning tradition, play in front of 100,000 fans, chance to play in the Rose Bowl."