171 Daly Avenue, Sandy Hill, Ottawa

The engraving is from the H. Belden Atlas of 1879, the photo is, of course, a Google Maps Street View. The question has to be, did houses get smaller or did we get larger?

Regarding the C. H. Mackintosh referred to in the caption, Wikipedia tells us that ...

The Honourable Charles Herbert Mackintosh (May 13, 1843 – December 22, 1931) was a Canadian journalist and author, newspaper owner and editor, and politician. He served as mayor of Ottawa from 1879 to 1881, represented the City of Ottawa as a Liberal-Conservative Member of Parliament in the House of Commons of Canada from 1882 to 1887, and from 1890 to 1893, and served as Lieutenant Governor of the North-West Territories from 1893 to 1898, as it underwent a major transition toward responsible government."

Do check out the link, Mackintosh seems to have been quite the dashing fellow.

Goad, again from 1879, shows us a house (red arrows) of all-brick construction, facing south onto Daly.

171 Daly sits roughly halfway up the slope of Sandy Hill. Back in the day, the then-spacious back yard would have enjoyed an unimpeded view of Lower Town and the Gatineau Hills beyond. Going by an 1863 Ottawa Directory Map and some early directory mentions, the house seems to have been built after 1863, its likely first occupant being William Fingland, who ran a dry-goods store on Sussex. A renumbering of addresses at the time makes exact dating a bit tricky, but Fingland appears as the resident of #171 in the 1875 City Directory.