John Robert Mortimer was born in Fimber on 15 June 1825 and founded James Mortimer Ltd from the family farm in Fimber in 1869.
James Mortimer Ltd’s offices were located at 16 Middle Street South from 1869 until the 1920’s, when they purchased the house adjacent to their existing warehouse facilities at Riverhead.
Riverhead Warehouses, situated alongside the Driffield Navigation basin were first rented by Mortimers in to early 1870’s and subsequently purchased. Riverhead remained the home of Mortimers until it was sold in 2014 to facilitate the move to Kelleythorpe Industrial Estate.
John Robert Mortimer was also remembered as a pioneering archaeologist who made a nationally important contribution to the development of modern British archaeology, publishing Fourty Years’ Researches in British and Saxon Burial Mounds of East Yorkshire and opening The Mortimer Museum of Archaeology and Geology on Lockwood Street in C1900 (the collection is now housed in the Hull and East Riding Museum).
Over the following years, J R Mortimers relatives became involved and took over the business. In the 1930’s the Company’s Managing Director, Mr Percy Whiting bought the company and ran the business until his retirement. Percy Whiting’s daughter Winifred assumed ownership of the company, she died in 1982 and her daughters took over ownership.
In 1995 Mortimers was subject to a Management Buy Out by Maurice Robson, Simon Minns and Christopher Atkin.
The company has steadily grown its business and for this reason decided on a re-location plan. In 2013, the company acquired a 2.25 acre site on the Kelleythorpe Industrial Estate, a perfect location central to Mortimers trading area.
In 2014, the site at Kelleythorpe was developed to include offices, a warehouse and seed plant facility and a standalone grain store. The new seed plant facility will service demand from local farmers and the wider wholesale seed trade. The site at Kelleythorpe has expansion capabilities in order for the company to continue its expansion through the 21st Century.