There were two potato houses, an icehouse, Bessey tannery, Chalmers Mill and a canning factory. All of these were at the Albion terminus but not all at the same time.
So my guess is:
Outgoing cars: potato houses, ice house, finished tannery goods, finished mill products and canned goods.
Incoming cars: bark (possibly, but more likely from the Chalmers Mill), hides (more likely, coming from a slaughterhouse), tin for the cans.
Following up from Paul's post, there must have been a freight house to serve all those businesses. The bicycle makers would have needed steel tubing, tires, hubs, spokes, rims, seats. The agricultural customers would have needed grain coming in. The general store would have needed goods of all sorts, which probably came in barrels made in a cooperage (not here). Undertaker would have needed coffins. Might have made his own, or bought them locally, but I expect there are on-line coffin makers.
There were probably four or five spurs, and a run-around track because it was the end of the line.