Eagle School, the old school was used as a teacher's residence. It was later moved about south to its current location and reconfigured into an ell. The second Eagle School was built between Main and Oak streets. The original structure no longer exists, and a private home now stands on that property, however, the steps leading to "Eagle School" from Main Street are still visible. Some of building materials were recycled for construction of the Community Center and a small building in Penngrove Park. In 1926 a beautiful mission-style school house was built and named Penngrove School, Eagle District. Penngrove School joined the Petaluma City School District in 1962. In 1963, the present multi-purpose room was constructed and newer wings were developed between it and the older portion of the school. The multi-purpose room was expanded with a stage in 2006. The 1926 school building is now primarily used for offices and the school library. Post Office "The Post Office at Penn's Grove was established on October 30, 1882. A series of name changes occurred because of mail mix-ups with Penn's Grove, New Jersey and Pine Grove (later renamed Sebastopol). In May 1895 the Petaluma paper reported: 'The Penngrove Post Office has had its name changed again and is now officially known by its former and best known title, Penn's Grove.' In 1908 the name was changed back to Penngrove and has remained so since" (Harris 1980). The first Post Office was located in the Edwards Building and was then moved into the Terribilini Building on the East side of Main Street. It was then moved next to Penngrove Market and a new structure for the Post Office was built in the 1980s on Main Street across from Penngrove Market. Fire Department At the turn of the century, three fire chemical carts served as Penngrove's fire protection. The foundation of Firehouse #1 can be found between Penngrove Church and the Old Eagle School lot on Oak Street. "The fire department was established in the fall of 1928. In 1929 the first fire engine was put into service" (Harris 1980). In 1938, the art deco fire house was built on Woodward Avenue, just above Main Street. This structure still bears the title "Penngrove Firehouse." It is a now a private residence. In 1975, the current firehouse was built at the corner of Old Redwood Highway and Main Street, the unofficial entrance