The Helen Jeffris Wood Museum Center, housed in the 1912 Prairie-style residence of Stanley Dexter Tallman, serves as the Lincoln-Tallman House's visitor and ticketing center and houses the administrative offices of the Rock County Historical Society.

The Helen Jeffris Wood Museum Center offers exhibit galleries that feature Pauline Pottery and Pickard China, as well as rotating exhibits celebrating the history and heritage of Rock County. Parker Pen World features some of the most popular Parker pens in history, a collection of old ads and memorabilia, and music from the Parker Pen Band. The See Rock County! exhibit allows visitors to experience life as a Rock County tourist in the early 1900s. Selfies are encouraged at a host of stations, including in the 1923 Chevrolet Superior Series B Phaeton convertible and on an old-fashioned sleigh.

Guests are also welcome to share their own stories and memories throughout the exhibit. Visit the gift shop, which features art pieces from Janesville Art League members and other regional artists and makers selling on consignment.

Visitors will also discover pottery, children's items,  unique upcycled mittens, scarves and  other attire, an assortment of locally made masks, and a wide selection of jewelry including costume pieces, fine jewelry, and collectibles. The gift shop is open by appointment.