re: Lefever.
Uncle Dan was a regular competitor and promoter
1895
http://library.la84.org/SportsLibrary/SportingLife/1895/VOL_25_NO_21/SL2521021.pdf
1897
http://library.la84.org/SportsLibrary/SportingLife/1897/VOL_29_NO_15/SL2915026.pdf
Lefever Arms Diamond Medal race and 2nd most popular gun at the New York State Association Tournament
http://library.la84.org/SportsLibrary/SportingLife/1897/VOL_29_NO_13/SL2913030.pdf
At the 1900 GAH
http://library.la84.org/SportsLibrary/SportingLife/1900/VOL_35_NO_05/SL3505012.pdf
1905
http://library.la84.org/SportsLibrary/SportingLife/1905/VOL_45_NO_23/SL4523029.pdf

Col. Courtney (later of Remington/U.M.C.) was a Lefever rep
http://library.la84.org/SportsLibrary/SportingLife/1897/VOL_29_NO_06/SL2906026.pdf

1903 Lefever promo, and the introduction of the Durston Special
http://library.la84.org/SportsLibrary/SportingLife/1903/VOL_41_NO_05/SL4105021.pdf

An accomplished shooter from Kansas used a Lefever
http://www.trapshooters.com/threads/kansas-state-champion-e-w-arnold-and-his-lefever.494345/

1903 GAH winner
http://library.la84.org/SportsLibrary/SportingLife/1903/VOL_41_NO_06/SL4106018.pdf

1905 GAH winner, and guns "especially bored for trap use."
http://library.la84.org/SportsLibrary/SportingLife/1905/VOL_46_NO_14/SL4614014.pdf

A.H. Durston was also a competitor and rep
http://library.la84.org/SportsLibrary/SportingLife/1905/VOL_45_NO_17/SL4517029.pdf

More Lefever stuff here
http://www.trapshooters.com/threads/shoot-a-lefever-and-improve-your-record.234202/

https://sites.google.com/a/damascusknowledge.com/www/home