The Ravens have agreed to terms on four-year contracts with fourth-round fullback Kyle Juszczyk and seventh-round cornerback Marc Anthony, according to sources.
Juszczyk received a $300,000 signing bonus.
The Ravens have agreed to deals with six of their 10 draft picks.
The last player drafted from Harvard was quarterback Ryan Fitzpatrick, a 2005 St. Louis Rams fifth-round pick.
Pro Bowl fullback Vonta Leach remains on the roster,
"The thing we like about Kyle other than his ability to play on the offensive side is we expect him to be a very good special teams player contributor," general manager Ozzie Newsome said after the draft when asked if Leach and the rookie can both be on the roster. "So, could there be a place for both of them? Yes, there could be. We want to keep the best 53 players."
At his campus Pro Day workout, Juszczyk ran the 40-yard dash in 4.71 seconds and registered a 37-inch vertical leap with a 10-1 broad jump, 4.19 20-yard shuttle and a 6.93 three-cone drill. He bench pressed 225 pounds 24 times.
Juszczyk played in the Senior Bowl all-star game after declining invitations to the East-West Shrine and CDS all-star games.
The Ravens were among his dozen official visits before the NFL draft.
Last season, Juszczyk, who has also played tight end, caught 52 passes for 706 yards and eight touchdowns. The Ohio native finished his career with 125 receptions for 1,576 yards and 22 touchdowns.
Anthony, who played at Cal, finished with 138 career tackles, 13 for losses, five interceptions, returning one for a touchdown with 26 pass deflections and two forced fumbles.
Last season, the 5-foot-11, 196-pounder had a career-high 52 tackles and two interceptions.