After marrying Jane Ann Fulton, he took leave of the legal profession, taking charge of a store at New Lisbon, Ohio, where he remained for three or four years.

[3]: 77  In an era rife with the exchange of verbal abuse between rival newspapermen, Craig's vitriolic pen showed no mercy to his journalistic opponents, which were many, including at one time or another almost every newspaper editor in Pittsburgh.

[6] In an 1843 election for US Representative, the sides of the faltering Anti-Masonic–Whig alliance fielded separate candidates: the Anti-Mason Craig and the Whig Henry Marie Brackenridge.

[7] Craig tried again for a US House seat as the candidate of the anti-slavery Liberty (1844) and Free Soil (1852) parties, but captured only a few percent of the vote each time.

[9][10] For two years starting on 1 January 1845, Craig published a monthly historical journal called the Olden Time.

Other works are Exposure of a Few of the Many Misstatements in H. M. Brackenridge's History of the Whiskey Insurrection and Registeres des Baptismes et Sepultures qui se sont fait au Fort Du Quesne, both published in 1859.