Carr (b. 1984) was an 18th round pick by the Nationals in the 2006 June Amateur Draft out of Oklahoma State University. He pitched in the Nationals system from 2006 to 2013, reaching AAA. He had a record of 22-21 with 297 strike outs and a 4.36 ERA.
I mailed to Carr on January 11 and got the cards back on January 22, for an 11-day TAT.