The other 14 -which will be comprised of 10 senior candidates (players who last played 25 years ago but slipped through the regular HOF process), three contributors (someone other than a player or a coach) and one more coach - will be revealed on the NFL Network's "Good Morning Football" show on Wednesday.
Cowher, a Crafton, Pennsylvania, native who coached the Steelers for 15 seasons, was visibly moved by the announcement. The former coach gave a brief speech of gratitude and put things in perspective by saying he was just hoping to avoid being fired before his 20th high school reunion.
Cowher succeeded Hall of Fame coach Chuck Noll in 1992 and led the Steelers for the next 15 seasons, retiring after the 2006 season.
He's a legendary figure in Pittsburgh, and was one of the most consistent coaches in the National Football League during his tenure.
The centennial class was selected by a blue ribbon panel this past week.
"His Pittsburgh roots were ideal for our organization because he knew the history and passion of our fans, and he wanted to bring a Super Bowl back to his hometown".
Of course, the former Steelers coach won't have to worry about that anymore, because he'll be in Canton with the rest of the inductees in August.
Per the Hall of Fame, a panel met in Canton on Wednesday to elect the Centennial Slate, marking the first time members of the Pro Football Hall of Fame were elected during a selection meeting at the Hall.
Cowher became the 15th coach in Steelers history on January 21, 1991 when he was hired to replace Chuck Noll as the second man to hold that job since the 1970 NFL-AFL merger.
The 38 finalists were chosen from a list of nearly 300 nominees over the course of the past five months.
The class of five modern-era player finalists for 2020 will be announced the day before Super Bowl 54. Cowher played in Cleveland for three seasons and was a member of the Kardiac Kids.
Cowher won Super Bowl XL with the Steelers, a 21-10 win over the Seahawks.