I have been looking into your question regarding the Flour Mill at 687 South Railway Street. The first building on the site was built in 1901 by the McNeeley family. This was later torn down, and in its place was built in 1910 what began as the Medicine Hat Milling Company (still owned by the McNeeley family, but wasn’t incorporated until 1912). This original building was 130’ x 80’ and built under permit #324 issued July 29, 1912 and the estimated cost of construction was $50,000. In 1914 the building was bought by Lake of the Woods Milling, and in May 1914 they built an addition of 40’ x 28’ onto the original building—as well as an elevator structure (51’ x 36’) at a cost of $30,000 on permit #136.
Then, we fall into a bit of confusion. The present structures that we see are not the original building. It appears that the original building was knocked down and replaced by a warehouse and mill built out of brick and concrete for an estimated cost of $150,000. As well, elevators built of reinforced concrete were added for and estimated cost of $100,000—built under permits #22 and #23 issued June 20, 1916. I can’t be certain if the existing elevators that were built in 1914 were knocked down and replaced by the elevators in 1916, or if they were the ‘additional’ elevators you described.
I have included a few pictures for reference. Unfortunately, these pictures are just assigned tentative dates, as we are uncertain of their exact dates. My information is educated guesses, and I have put the photos into what I believe is ‘chronological’ order.
Image #0048-0001: This is the early photo of McNeeley’s Mill (Medicine Hat Milling Company). This picture is dated 1903.
Image #0403-0001-06: This is a photograph of the Medicine Hat Milling Company in 1912 or 1913. It does not show the same building as it was in 1903, and shows three or four identifiable structures.
Image #0439-0037: In this image, you can see that the 1913 structure is now gone from the centre of the photograph, leaving only the small house-like (office?) in the front—implying that the building of 1913 has been torn down. The front of the building still says the Medicine Hat Milling Company.
Image #0350-0075: This photograph shows the exterior of the Lake of the Woods flour mill (notice the Five Roses Flour) named on the front, meaning this photo must be after the 1914 purchase. I also believe that this shows the additions—on the right of the photo—that Lake of the Woods did to the building.
Image #0299-0001 to 0004: This set shows the construction of the large warehouse and elevators, and is most likely the 1916 construction. The final photo, 0004, shows the six elevators, and all seem to be under construction from the top. To myself, this indicates that all other elevators were removed, and that the six were built concurrently.
Image #525-0126: This photograph shows all four buildings of the Mill seemingly after the construction is completed.
To me it's clear that there were further expansions on the site, specifically in regards to the elevator. As it stands today, it is a wider structure and it makes sense that that would have come as a result of increased production. The downsizing of the warehouse however, was a result of the renovation into an inn and pub back in the 1970s.