Morris L. Hallowell and Co. (approx. 1835-1861) was a Philadelphia, Pennsylvania company that imported and sold silk and dress goods.

Morris L. Hallowell and Co. was founded in approximately 1835, at which point it was known as Hallowell and Ashbridge, by Morris L. Hallowell and William Ashbridge in Philadelphia, Pennsylvania. They described themselves as "importers and jobbers of silks and dress goods." When William Ashbridge retired in approximately 1838, Morris L. Hallowell formed a partnership with William Walton and changed the name of the business to Hallowell, Walton and Co. They remained partners until William Walton died in approximately 1845 and Morris L. Hallowell again changed the name of the company, this time to Morris L. Hallowell and Co. This name was sometimes shortened to M.L. Hallowell and Co. Morris L. Hallowell and Co. gradually grew until its business interests extended throughout the American West and South. In 1853, a new storefront was purchased at 147 Market Street. Morris L. Hallowell and some other members of his firm were fierce abolitionists. In the years directly before the Civil War, this caused some pro-slavery individuals and businesses to boycott Morris L. Hallowell and Co. and to convince others to do the same. The final blow came in 1861, when the Civil War broke out and, as a result, many Southern merchants repudiated the debts owed to Northern businesses, forcing Morris L. Hallowell and Co. to liquidate and close.

William Clarke was a merchant in Salt Lake City, Utah in 1850.

William Clarke was a merchant from Independence, Missouri. In May 1850, he formed a partnership with a Mr. Packard and a Brother James and they decided to take their goods to Salt Lake City, Utah to be sold.