Reginald Fessenden
Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father. During his life he received hundreds of patents in various fields, most notably ones related to radio and sonar.
Alphaeus Philemon Cole
Although not recognized at the time, Cole is now recognized as the oldest living man for more than a year, between January 5, 1987 to his death, succeeding another notable supercentenarian, 111-year-old Norwegian skier Herman Smith-Johannsen. He was succeeded in title by then 111-year-old John Evans. As of August 11, 2013, prices for Cole's works now reach $5,000 or more. He died at the age of 112 years, 136 days.