I don't know about a link between Helen Young and Rosanna Young directly but I wouldn't be surprised since Helen's husband, Thomas Peter John Haldane, was the grandson of Peter Haldane and Rosanna Young. Thomas P J Haldane was the son of Peter Haldane born 1813 and Elizabeth Jane Yockins.
They are all listed in giantlop and also in the IGI.
Good luck with your research.
(whose great great grandfather was Peter Haldane, but I am not sure if it is the same Peter Haldane who married Rosanna Young or not!