At the end of the 17th century there was no village in this area, just an extensive forest. In the plantation of UlsterJames I and VI granted eight townlands to Sir William Parsons, Surveyor General of Ireland. In 1729 James Lowry inherited the land from his father, Robert of Aghenis Caledon. In the 18th century two new parishes were created in Tyrone, and the same family, the Lowrys, was involved in the establishment of both. Pomeroy was created from part of Donaghmore, while Clogherny was taken from Termonmaguirc. The arrangement was confirmed in 1731 by an Order in Council, which had the same legal status as an Act of Parliament, and the articles of agreement under which it was conducted by the two parties involved, Lord Tyrone and Robert Lowry, suggest the tone:
The name of each of the new erected parishes shall be wrote on a separate scrole of parchment, roll'd up and put into a hatt, to be held by an indeffernet person,... and that the said Marcus, Lord Viscount of Tyrone, and Robert Lowry shall each put his hand into the said hatt, and take thereout one of the said scroles, and that the advowson of that parish which shall be mentioned in the said scrole.. to be drawn out of the said hatte, by the said Lord Tyrone, shall stand and be the advowson of the said.. Tyrone, his heirs and assigns, for ever."
In 1750 Rev. James Lowry was granted the right to hold a weekly market in Pomeroy and an important event was the twice yearly Hiring Fair, held in May and November. Men and women from the surrounding countryside would gather at the fair and hire themselves out as farm workers and servants. In the 1640s the large forest had been stripped of timber and for many years after remained neglected. In 1770 the Rev. James Lowry undertook its management, replanted about and left money to build Pomeroy House. The Lowry family played a big part in the life of the area for about 200 years. In the square is the Church of Ireland church which dates from the early 1840s. Its belfry and tower were paid for by the Lowry family as a token of their esteem for Pomeroy. Much of the woodland is gone and the Georgian mansion demolished. All that remains is the family burial vault on Tanderagee Road. This was once approached by the longest avenue of Chilean pine trees in Ireland. The road leading from Pomeroy to Donaghmore is known as the Royal Road because in 1689 James II and VII took this route to visit his troops in Derry during the historic siege. This route brought him through Cappagh and Altmore. King James’s Well is by the roadside just outside Cappagh.
Pomeroy is the home of the multi-award-winning farm shop at Cloughbane Farm, which uses only locally sourced meat, vegetables, potatoes, milk and flour in its products. The 180-acre farm is a fourth-generation, family-run beef and lamb farm outside Dungannon. The on-site farm shop and butchers were established in 2003 and in 2006 began selling home-cooked pies and take-away meals. In 2006 the company, which has won five UK Great Taste Awards, expanded after securing a supply deal with Tesco.