The trip was taken by Mildred Wiss and Norman Wiss [Sr.] Based on the original numbering and labeling, there are slides that were given away. Especially for England. So, not complete.
Pictures were taken on Kodachrome film. Last six slides were in metal frames. Slides were scanned at 3000 dpi with a Nikon Coolscan 5000 (introduced 2003). Software used was VueScan.