Now the home of the Pitt Meadows Musueum, The General Store and Post Office building has stood next to the CPR tracks on Harris Road since 1908, when Mr. H. Plommer and his wife, Mary, had the partially constructed building moved on log rollers by a team of horses from Herring Road, on the old Ford property, to its present site. The Plommers had purchased one acre of land from Wellington J. Harris. This location was chosen for its proximity to the rail line, and helped establish Harris Road as the commercial core of Pitt Meadows. The building was originally a two-storey Foursquare house, and as the business grew there were additions to the sides and rear. The post office was located in the south wing of the building and H. Plommer was listed as the first Post Master. In 1911, E.J. Crickmay purchased the property and by 1918, Albert and Margaret Thornton were the proprietors of the store and post office. In 1921, William Struthers (1867-1946), his wife Jeannie (1868-1935), and their sons William, Robert and Jack took over the operation.
The building was used as a general store up until 1931, when the Struthers built a larger store just to the south of the building. This remained a residence for some members of the family, and was also used as a storage facility; the post office continued to operate out of its original location William Struthers Sr. served as a general merchant and Post Master until 1943 when Robert Thorburn became the new Post Master and set up in a separate building at the corner of McMyn and Harris Roads.
During the mid-1990s the building was unoccupied and fell into a dilapidated state. The District of Pitt Meadows purchased it late in 1997 and undertook its restoration. Most of the original elements had survived, including a remarkably well-preserved interior with a plywood ceiling, wooden floors and high wooden wainscoting. It also retains the recessed entrance and plate glass storefront windows from the 1908 conversion. In June 1998, the Pitt Meadows Heritage & Museum Society moved in and this historic landmark became the third home of the Pitt Meadows Museum & Archives.