HI I note first that you mention Henderson and then Hounsfield, is it one or both that they lived in? Both of these townships are in Jefferson County which borders St Lawrence County and you might want to try the NYJEFFER-L@rootsweb.com Mailing List rather than this list. Also you do not provide very many details as to the year they were in both of these towns and what Census or Records you have found on them (Perhaps you have a Census, Will or Land Records). Did you check the Court house in Jefferson County for Naturalization records? Where did you get the information that they came via Canada? Have you check Alien records? Did they stay in Canada or come directly to NYS? Several things are important here. First you need an exact DOA (Date of Arrival) to Canada. You need a DOA to NYS. Did Belle come at the same time? Many Irish immigrants during this time came via Montreal Port . Passage was less expensive to Canada than to the NY Port. There are 98 microfilms of these ship manifests arriving in Montreal with Irish Immigrants (additional reels for other ports) for this period and they are NOT indexed which takes a great deal of time to find your immigrant and the exact date of this arrival is very important. It wasn't until 1894 that the US and Canada made an agreement to keep track of the many immigrants arriving in Canada and coming by land to the US. These records are called the St Albans Immigration Records (although they arrived in Montreal). If the DOA is as you stated these records would not apply or be of any use to you. You also would have to take in consideration name Variations (Lowry, Lowrey,Lowery) when reviewing these immigration films. It is best to have accurate and documented evidence before searching for them or you could be on a wild goose chase. Pat R