In the middle of 1845, the daily title changed under new ownership to
Daily Commercial Journal and Spirit of the Age, the latter half of which was eventually dropped. The name change signified that the paper would cater more than before to the interests of "the Manufacturer, the Farmer, and Merchant." In 1853 Riddle was elected with Whig backing as
mayor of Pittsburgh, which post he filled a single one-year term, at the same time continuing to manage the newspaper. As the Whig Party fell apart soon afterward, Riddle and the
Journal shifted support to the ephemeral
American Party before aligning with the up-and-coming
Republican organization, all the while maintaining an anti-slavery, pro-
Northern stance. The
abolitionist weekly
Saturday Visiter, founded by editor
Jane Swisshelm in 1847, was published from the
Commercial Journal office. In 1854 it merged into the
Journal's weekly edition, at the time called
Family Journal, to form the
Family Journal and Saturday Visiter. Swisshelm edited a "Visiter Department" within the merged edition. From this platform she promoted the causes of anti-slavery,
temperance, and
women's rights. Riddle conducted the
Journal until 1858, when failing health prompted him to sell his interest to
Thomas J. Bigham, who assumed editorial charge. Bigham was an abolitionist Republican who purportedly used
his house as a refuge on the
Underground Railroad. ==Consolidation==