I looked at the images on the page http://www.wickheritage.org/johnston...y.asp?catid=55 and indeed there is a picture of the Wick Harbour c1862, however, the rest of the images look to be from much later in time. Based on the type of steam ships I'd say many of the other images are from 1900 to 1920s.

From about 1905 onwards sailing Fifies were gradually fitted with engines and converted to motorised vessels.--wiki