Oak Ridge. The Jefferson Township Museum, also known as the George Chamberlain House, will reopen with an Open House on Sunday, April 5, 2020, from 1 to 4 pm. Admission is free. Costumed docents will be available to talk about this Victorian home. For the 2020 season, the Jefferson Township Historical Society will focus on a variety of displays encompassing the lineage of our founding families, their contributions and support during the development and growth of the Township. The series will run from April through November. For further information, refer to the Jefferson Township’s Historical Society website at www.jeffersontownship.net/360/historicalsociety or call Christine Williams, Jefferson Township Historical Society President at 973-697-0258.