I suppose that a pilgrimage must start somewhere and Pettigo is as good a place as anywhere! This assembly heading for the rigours of the Lough Derg island is impressive! And the assorted transport on view is a delight to the eye: charabancs, side cars, etc. All on horse power alone. Which perhaps helps us with a date?
The general consensus is that the date is perhaps c.1900 or later. Based on the fashions, buildings and other available photos of the area. Perhaps c.1890s-1910s....
Photographer: Robert French
Collection: Lawrence Photograph Collection
Date: Catalogue range c.1865-1914. Almost certainly in the last decade of two of that range (fashions/buildings/etc).
NLI Ref: L_ROY_10811
You can also view this image, and many thousands of others, on the NLI’s catalogue at catalogue.nli.ie
Owner: National Library of Ireland on The Commons
Source: Flickr Commons