River Gipping
During 1791, when the Trustees were negotiating with John Rennie, they had asked him to assess an extension of the navigation from Stowmarket to the River Lark at Bury St Edmunds, but this was not pursued. With the navigation thriving, there were two proposals for canals from Ipswich to Eye, Suffolk in 1819. A meeting was held in January at Eye, which was chaired by Charles Cornwallis, 2nd Marquess Cornwallis. It considered two reports, one proposed by the civil engineer William Cubitt, which involved a tunnel through the hills at Mendlesham, with the estimated cost exceeding £100,000, and another, for a canal over the hills, costing £80,000. Both were thought to be too expensive to implement, but a third proposal emerged, for an extension from the River Gipping at Needham Market, which would follow the valley of a tributary through Creeting St Mary to Earl Stonham, where a basin would be built beside the turnpike road (now the A140 road). This would enable waggons to make a round trip from Eye in a single day, rather than the two days that a trip to Ipswich took. The scheme was estimated to cost £12,000, and shares in it were offered at the meeting. Although many were taken up, the scheme did not advance any further.
Harpeth River
Another possible origin for the name of the Harpeth River was presented by Edward D. Hicks in a paper read before the Tennessee Historical Society and published by the “American Historical Magazine” in 1900. Hicks comments upon the influence of classical literature read by learned gentlemen in the 18th Century. One source popular among many in the English-speaking world, including America, was the “Spectator” published by Joseph Addison. The “Spectator” contained articles on philosophy, morals and the classics. In publication number 584, printed in 1714, is found the antediluvian love story of Hilpa, Harpath and Shalum. Harpath comes to an untimely end drowning in a river as he attempted to cross it. “The river is called to this day from his name, who perished in it, the river Harpath…”. Hicks does not offer the claim that this is the definitive origin of the name however he does say it is “certainly appropriate…I submit it as the most probable and ingenious theory I can suggest.” 
It should be noted that early 18th-century maps including Matthew Carey’s 1795 Map of Tennessee as well as that of John Reid, Imlay’s American Topography, Arrowsmith, and Stockdale use the spelling Harpath River which differs from the modern spelling of “Harpeth”. The exception is John Russell’s 1794 map of the Southwest Territory published in London circa 1794. The earliest known written reference is found in the diary of John Lipscomb. His July 1784 entry mentions the “Harpath” river. In addition, contemporary historian Virginia Bowman gives credence to Hick’s theory in her comprehensive book on early sites and homes of Williamson County, Tennessee.