Both men were first elected to their dual political roles in December 2020.
They and Bruce Woodhead went up for election on Saturday with all registered voters over the age of 16 able to have their say.
Pictured: Each candidate secured more than 100 votes.
403 votes were cast, representing a 30% voter turn out in the island.
Two papers were spoilt.
The results mean States Members Roberts and Snowdon will now be recommended to the Alderney States as the island’s representatives for 2023 and 2024.