I've sent you two emails. Both have bounced back to me.
So, regarding the arm & arrow chips, I have nothing definitive. This is all I have:
1. http://www.myfamilysilver.com/pages/crestfinder-crest.aspx?id=142740&name=Cubitt
2. https://books.google.com/books?id=Ur5VAAAAcAAJ&pg=RA1-PT755&lpg=RA1-PT755&dq=arm+embowed+in+armour+holding+arrow&source=bl&ots=b85lhv69E4&sig=gWoo3CEaOb9GxNC7RNLG8Nn5o5w&hl=en&sa=X&ved=0CBsQ6AEwBGoVChMI_KSfue_YxwIVhHU-Ch3IZAKs#v=onepage&q=arm%20embowed%20in%20armour%20holding%20arrow&f=false