Judith Miller & Tracie Peterson 
These Tangled Threads (Bells of Lowell Book #3) [EPUB ebook] 

Book 3 of Bells of Lowell. Timid yet alluring Daughtie Winfield finds herself in a precarious position when the new doctor casts his favor upon her. Though flattered by his attention, she is drawn to Liam Donohue, a local Irish artisan. As Daughtie and Liam work together to help runaway slaves, their friendship blossoms. But her work in the mills is threatened when a downturn in profits causes the Associates to decrease wages–resulting in plans for a strike. With the fate of the textile industry in an upheaval, will her hopes for love be thwarted as dissention infiltrates life in Lowell?