The twins were each selected in last week's MLS SuperDraft.
Matt was drafted at No. 25, while Ben went at No. 44.
“To be on the road, away from our families, not having anyone at the games — all we have is each other,” guard Marcus Dockery said.
Smallwood, who worked at The Diamondback and The Black Explosion, died Dec. 6.
The Terps have brought in 10 new recruits.
Herve was a key cog in the Terps' 2018 national championship run, notching four goals and three assists.
“It kind of felt like Ludwig again."
The Terps are the highest-ranked team in the Big Ten.
Blumberg made two appearances for League One side Charlton Athletic before coming to the Terps.