The onside kick from scrimmage was eliminated, in the collegiate game, before WWI -- around 1912, I believe. The NFL started in 1920. So I guess the answer is -- never. In the NFL, an onside kick is only possible on a kickoff or on a free kick after a safety. But has there ever been an onside drop kick? I don't know, but lets consider why that would rarely (if ever) happen:
Kickoffs are required to be a place kick (from a tee). So the only time you could even attempt an onside drop kick is after a safety, which is one of the rarest plays in football.
An onside kick after a safety is very dangerous, as the kick must be from the 20 yard line. The opponent could recover the ball already in field goal range.
An onside kick must hit the ground to prevent the other team from calling for a fair catch. This is more difficult to pull off with a drop kick.
The Plural of touchdown is touchdowns, e.g. the Patriots scored 4 touchdowns.
Laurence Maroney of the Patriots.
Safety James Sanders scored on a 39 yard interception return in the fourth quarter of the Patriots 35-7 victory over the Bills.
The Patriots touchdown celebration song is "This is our House" by Bon Jovi.
Randy Moss holds that record for the New England Patriots. In 2007 he snagged 23 touchdown passes from quarterback Tom Brady.
I've never heard that term, but I would assume it means a touchdown scored from a play that originated at the line of scrimmage, as opposed to a touchdown scored on a kickoff return.
Tracy Porter scored the last touchdown for the Saints, making a 74-yard interception return.
Jeff Saturday of the Indianapolis Colts scored a touchdown on an offensive fumble recovery. The touchdown was scored in a 38-34 Indy win over New England in the 2007 AFC Championship Game.
The Patriots scored first. New England scored first, in the first qtr. on a 36 yard Field Goal by Tony Franklin to put the patriots up 3-0.
The 2008 New England Patriots scored 410 points during the regular season.
The New England Patriots
The New England Patriots scored 371 points in the 2001 regular season.