Not the same person, Hon Henry Jackman was still living in 1997, he gave a speech in Toronto, I believe he is still alive born in 1932.

Private Giving in Canada
Speaker Jackman, The Honourable Henry N.R. Chairman, The Council for Business and the Arts in Canada
Date 17 Apr 1997

Not the same person, Hon Henry Jackman was still living in 1997, he gave a speech in Toronto Private Giving in Canada

Speaker Jackman, The Honourable Henry N.R. Chairman, The Council for Business and the Arts in Canada
Date 17 Apr 1997

Captain Henry Jacman at one time commanded, with his brother Frank, a fleet of grain-carrying schooners on Lake Ontario in the 1850s through the 1870s. He died in 1882. From my Google search I don't know if he's the same person:

The Honourable Henry Jackman, according to Algoma's website, was named in honour of a long serving Director of the Corporation, the former Lieutenant-Governor of Ontario and a former Chairman of the Corporation.