I can fill in a few blanks:
2 - belt sander / linisher;
7 - on the grinder label, 687A is not what I would call a serial number - mine has the same number!
14 & 18 - are drilling machine vices;
16 - is an expensive milling machine vice apparently in mint condition;
15 & 22 - go together to form a Dore Westbury milling machine (quite likely made by your BiL);
17 - 95% sure this is a (very) high speed drilling machine;
23 - are bogies for a (5" gauge ?) driving trolley;
28 - is a GH Thomas design bending rolls, probably made by your BiL;
29 - is a GH Thomas design Pillar Tool, probably made by your BiL;
The Quorn Tool and Cutter Grinder (quite likely made by your BiL) appears to be a decent, workmanlike example;
After the Quorn is an item marked MA 1703/1. This Is a Myford dividing head.