Does anyone know where this is? I assume it’s a sardine factory in Lubec, Maine.

This photo was in my grandmother’s photos. Her name was Lizzie Keegan Rier. She was born in 1892 in Trescott and died in 1985 in Lubec at age 92. She worked in the sardine industry in Lubec from the 1920s to 1980s. Perhaps this photo was taken in the early 1900s judging by the clothing? I can’t see anyone who resembles her. Does anyone know what factory this is or anyone in the photo?

In my grandmother’s younger years, I was told by my Uncle Barney that she worked at the Union Sardine company owned by the McCurdys and her Uncle Thomas Keegan.