In the Patreon, the names and occupations of Gillion and Edyn's parents were revealed, but that information has not yet been added to the Wiki and I find it relevant.
The mother is Falyn Zomezath; a shark tamer,
The Father is Reed Tidestrider; a Kelp florist
We dont know much else about them.
This information should also be added on Finn's page, as Reed Tidestrider is most likely Finn's son.