In 1930 she won the U.S. National Championships mixed doubles title with Wilmer Allison after a straight two sets victory in the final against Marjorie Morrill and Frank Shields.
Allison's last major tournament was a 1936 quarter-final loss to Bunny Austin.
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He writes: "FOREHAND VOLLEY — Wilmer Allison of Texas, who won the 1935 Forest Hills, had the best I ever saw as a kid, and I've never seen anyone since hit one better. Budge Patty came closest, then Newcombe".
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He was ranked U.S. No. 1 both years and World No. 4 in 1932 and again in 1935 by A. Wallis Myers of The Daily Telegraph.
Mose Allison | Allison Miller | William B. Allison | Allison V-1710 | Allison Engine Company | Jennifer Allison | Jay Allison | Douglas Wilmer | Darren Allison | Bernard Allison | Allison Transmission | Wilmer Cutler Pickering Hale and Dorr | Wilmer Allison | Tropical Storm Allison | May Allison | Malcolm Allison | Allison Wolfe | Allison Moorer | Allison Jones | Allison | Wilmer "Vinegar Bend" Mizell | Wilmer Mizell | Wilmer | Rick Allison | Glenn Allison | George Allison | Dale Allison | Chris Allison | Brooke Allison | Ben Allison |
In 1931 Mangin, partnering with compatriot Berkeley Bell, were runners-up in the doubles final of the U.S. National Championships, played in Brookline, MA, losing in straight sets to compatriots John Van Ryn and Wilmer Allison.