While it was easy to declare Bob St. Clair the #1 offensive tackle, the second offensive tackle will not be so easy.  The 49ers have rolled out numerous extremely talented offensive lineman, particularly in the last 25 years.  I've narrowed the list down to five, mixing the dynasty era with some older guys.  All quite talented, but only one can make the Niners Nation All-Time Team Roster.

Harris Barton (1987-1996): Barton was a no nonsense offensive lineman who you didn't hear much about, but he was always there doing his job.  Barton won 3 Super Bowl with the 49ers, while earning two First Team All-Pro appearances and a trip to the Pro Bowl.  In his rookie year, Barton was the runner up in Rookie of the Year voting.  Barton was apparently recruited by over 100 colleges before attending the University of North Carolina.  He currently works in private equity funds and is apparently one hell of an amateur golfer.

Steve Wallace (1986-1996): My favorite memory of Steve Wallace came in the game where his "helmet shell" came off and Steve Young had to put it back on for him.  I think it was in 1994 when they won the Super Bowl, but I honestly can't remember.  I'm not sure why I so easily recall it, but I guess I'm just easily amused.  Like Barton, Wallace took home 3 Lombardi Trophies and earned a Pro Bowl appearance.  Finally, Steve Wallace was also the inspiration for a fun list post at an anti-49ers website.

Keith Fahnhorst (1974-1987): While plenty of players have played on bad teams that became good, the symmetry of Fahnhorst's career is intriguing.  From 1974-1980, the 49ers were 34-70.  From 1981-1987, they were 74-29-1.  For more recent 49ers fans, that would be the exact opposite of Bryant Young's career.  Matt Maiocco wrote a book on past 49ers and had an interesting chapter on Fahnhorst.

Len Rohde (1960-1974): Rohde played for the last three playoff teams before the Bill Walsh era.  During that time Rohde played in 208 consecutive games, earning one trip to the Pro Bowl, as well as a second team and honorable mention selection.  During his time with the 49ers, the team led the NFL in points scored in 1965 and 1970 and the NFC in 1972.

Cas Banaszek (1968-1977): Banaszek manned the other tackle position with Rohde.  He was actually drafted out of Northwestern as a pass catching tight end, but was switched to the offensive line after an injury his rookie season.  While never a Pro Bowler, he was named to the all-NFC offensive line in 1970.