In 1931, Chestnut introduced the Ogilvy, designed as you said for guides in New Brunswick (as well as elsewhere Down East)....and the type of use specific to their waters....fishing and canoeing in shallow rivers of the kind common to New Brunswick, Nova Scotia, Newfoundland and the Gaspe....Roger MacGregor in his book When The Chestnut Was In Flower has an entire chapter to this model of canoe....it was especially flat so it drew only a few inches of water. This made it well suited to rivers filled with shallow stretches, gravel bars and rocky beds. It could be poled up heavy rapids with minumum effort. Because of its steadiness, sportsmen casting for trout or salmon could comfortably stand while they fished. The flat floor was also intended as comfort to the guides, who otherwise poled the canoes with their feet braced at odd angles against the Vee of the stern.....or as James Raffan wrote in Bark, Skin and Cedar, this canoe's principal virtue....was its all-round capability of going down river, in rapids or in flatwater, but also, because of its relatively flat bottom and shallow draft, its ability to perform when being poled up river. A big man could stand firm on the ample floor of the canoe and make the canoe shiver or surge through downstream Vs with only minimal risk of losing balance. (As an aside, in Bark, Skin and Cedar, there is an interesting debate too over whether Chestnut 'copied' the Ogilvy from a Vic Miller canoe....one of the Ogilvy brothers was also one of the first proud owners of Vic Miller's canoes....and Harry Chestnut was a client....so did Chestnut 'borrow' Miller's design????....the Millers claim the Chestnut Ogilvy is just a flawed Miller sold under another name.....Don Fraser says he is unaware of any such pilfering on Chestnut's part, saying the canoes don't look at all alike....of course the Miller family claim: Of course they don't look alike! Chestnut didn't get it right. )
As for other guide canoes, or at least other Chestnut models, there were the Cruisers and the essentially same yet closer ribbed version, the Guides' Specials (built on the same forms but marketed separately by Chestnut as distinct models, even though any Chestnut was available in a close ribbed version)....Ken Solway noted in The Story of the Chestnut Canoe (while we have come to know the Cruisers and the Guides' Specials as a fast and extremely responsive craft due to a narrow, rounded hull) that in the 1905 catalog that the Cruisers and Guides' Specials were actually wider than Pleasure models....and that Guides' Special was described as a flatter bottomed river canoe (for use described in the 1905 catalog much in the way of the later Ogilvy).....but that this all appears to change once the extremely flat-bottomed "fishing canoes" were introduced....to the rounder, slightly rockered, narrow canoes most of us think of.....it also appears that the Cruiser canoes could be ordered built two or three inches deeper than standard; this was suggested in 1919 catalog for those looking for a canoe that was in between the fast and light Cruiser that didn't carry much and the slower Freighter; a canoe that later developed into a distinct model we know as the Prospector....the canoe Tom Thomson used, and others who guided in the lakes and rivers of the Canadian Shield, such as Algonquin, prior to 1923 when the Prospector was introduced, was likely such a version of canoe.
So there were at least two 'guide' canoes from Chestnut....one for use Down East, patterned after Maine "Guide" canoes....the other more suited for use in areas such as the Shield lake country as in Ontario.
