The Margin Brothers:

George and

 Herbert Charles Margin

 Index:

1. All Codd Patents

2. G. and H.C. Margin, Gosford & Woy Woy

3. G. Margin & Son(s), Gosford

4. H.C. Margin, Woy Woy

5. G. Margin gravestone

6. Margin - Miscellaneous