The Timothy and Jane Williams House is among the finest mid-nineteenth century homes in Rockland Maine, and quite possibly the most significant Italianate style structure in this seaside city. The house, which has been attributed to the local joiner and builder James Overlock, was erected circa 1859, and features high style decorative exterior elements including quoins, brackets, flush board siding, an elaborate entryway and decorative crowns over the large windows. On the interior, the formal rooms feature nicely executed plaster and wood moldings, original floors, marble fireplace surrounds, and an incredible run of high-quality tromp l?oeil painting in the two-story central hallway. Overlock designed this elaborate home, which is situated next to the former Williams Quarry, for one of Rockland?s rising most successful citizens, Timothy Williams, a farmer, politician, Colonel in the militia, business investor, and most of all, an important player in Rockland?s lime industry in the decades prior to its corporate consolidation. It was in recognition of both the social prominence of Williams and the artistic and architectural significance of the building that the Williams House was entered into the National Register of Historic Places.