Bob St. Clair
A Gentle Giant Who Anchored the 49ers' First Golden Decade.
Before the Super Bowl era defined the NFL, Bob St. Clair ruled the trenches for the San Francisco 49ers. Drafted directly from the University of San Francisco in 1953, he became the first player to wear number 78—a jersey eventually retired in his honor. Towering over opponents with immense size and surprising agility, St. Clair was the prototype of the modern offensive lineman, shielding legends like Y.A. Tittle and paving the way for a rushing attack that defined the 1950s 49ers.
- Role
- Offensive Tackle
- Team Tenure
- 1953–1963
- Pro Bowl Selections
- 7
- All-Pro Honors
- 2 (First Team)
- Jersey Status
- Retired (#78)
Lore & Background
St. Clair played during football's transition from old-school toughness to modern strategy. Though he never hoisted a Super Bowl trophy—a reality of his era rather than his skill—he earned seven Pro Bowl nods and cemented himself as one of history’s premier tackles. Off the field, his sharp intellect and humor made him a stabilizing force in the locker room; he was known to pen witty columns for local papers, endearing himself to fans beyond the gridiron. Even after hanging up his cleats, his legacy held firm: number 78 became the franchise's first retired jersey, marking him as an eternal pillar of the organization.
In Their Own Story
The fog rolled off the bay and settled over Kezar Stadium, a cold November afternoon in 1956. The crowd roared as Y.A. Tittle dropped back, scanning the field. On the left side, Bob St. Clair stood like a redwood tree, his massive frame absorbing the rush of a charging defensive end. With a subtle shift of his weight and a block that sent the defender sprawling into the mud, St. Clair cleared a path. He didn't celebrate; he simply reset his stance, eyes locked on the next threat. In the huddle later, Tittle clapped him on the helmet. "Good man," the quarterback said. St. Clair just grinned, wiping sweat and dirt from his face, knowing that while the stars got the headlines, the line won the games.
Reader's Guide
Bob St. Clair’s tenure with the San Francisco 49ers spanned from 1953 to 1963, a decade that forged the franchise’s early identity in the NFL. Arriving as the team's first major draft pick out of USF, he immediately became the cornerstone of an offensive line widely considered the best in the league during the mid-to-late 1950s.
His playing style was revolutionary for its time. In an era where linemen were generally smaller and less athletic, St. Clair brought a rare blend of massive size and surprising footwork. He utilized his length to keep defenders at bay and his agility to pull on running plays, effectively functioning as an extra blocker in the backfield. This versatility allowed the 49ers to run a dynamic, up-tempo offense that confused defenses across the league.
St. Clair's greatest achievements include seven Pro Bowl selections and two First-Team All-Pro honors, cementing his status as an elite player of his generation. He was instrumental in leading the 49ers to six NFL Western Conference titles before retiring in 1963.
Did You Know?
- Bob St. Clair was the very first player in San Francisco 49ers history to have his jersey number retired.
- He played college football at the University of San Francisco, where he was a two-way star before being drafted by the 49ers.
- St. Clair was known for his intelligence and wit, often writing humorous columns for local newspapers during and after his career.
- Despite playing in an era with no Super Bowls, he is frequently cited by historians as one of the greatest offensive tackles to never win a championship ring.