As you, good reader, may know, many American priests spend time after ordination pursuing post-graduate degrees or certifications at seminaries or universities, often in Rome. A diocese must have priests equipped with this sort of education so that it (and the seminaries that it supports and relies upon) can remain staffed with canonists, theologians, and other experts. Your humble scribe knows that several of the priests currently pursuing such studies from the Diocese of Nashville know and regularly say Holy Mass using the 1962 Missale.
Some years ago, in a post I can no longer locate, Fr. John Zuhlsdorf noted that priests who are away from their dioceses pursuing advanced studies (a) generally have very few Mass intentions and (b) concomitantly, do not have the opportunity to receive stipends for saying Masses, etc.
If you would like to look into having Masses offered by one of these student priests, use the contact e-mail found in the margin to write, and I will endeavor to put you in touch with one of them.
If you would like to have a Mass said at the Church of the Assumption, please contact the parish via one of the methods listed on the parish website, which is linked on the sidebar.