Former Tampa Mayor Myron Gillett, Apr. 1898
Photo from "Men of the South."

"LARROC" is "CORRAL" spelled backwards. 

The Corral and Vega families were related by marriage of Celestino Camilo Vega, Jr., (son of Celestino Camilo Vega, Sr. & Carolina Sanchez Rendueles Vega) to Sylvia de Angeles Corral, (dau. of Spain natives Manuel Corral and Angeles del Cueto Corral.)  Manuel Corral was the founder of Corral, Wodiska & Company; cigar company in Tampa.

Celestino C. Vega, Sr. & wife Carolina S. Vega, 1927
Cropped Burgert Bros. photo from the THCPLS

Manuel Corral
Tribune obit photo, Dec. 1, 1936

Apr. 11, 1930 Tribune - UF Sigma Chi President

1931 Times - Mystic Krewe 1st Maid

1932 Gasparilla Queen
Miss Sylvia de Angeles Corral

Neither the TIMES nor the TRIBUNE printed more than a short paragraph about the naming.  No attempt was made to report the significance of the name of the new dorm.