At the beginning of the 20th century, Bay City was the third biggest city in Michigan, after Detroit and Grand Rapids. Lumber and sawmills were a big part of that success. The wealth amassed by its lumber barons built a vibrant downtown and mansions along its main streets. Add industry, shipping, sugar beets, schools, and churches to the mix, and you have the pictures in this book.These postcards show you how Bay City looked at its peak in the very early 1900s until about 1940-a time when people were glad they had reached their destinations and happy to send a postcard when they arrived.