http://en.wikipedia.org/wiki/Leonard_Lomell
A true hero of Pointe du Hoc.
Leonard Lomell’s obituary:
http://www.nj.com/news/index.ssf/2011/03/leonard_lomell_d-day_hero_from.html
Thermite grenades melted the gears in the traversing and elevating mechanisms of the guns. Excellent!