Demi-griffin from Murrells to Tolkiens?

Before you read it, read this post: "The Tolkien Heraldry | Demi-Griffin as a sign of the Tolkien Family!". 

This theory explains why the griffin tradition is not known to the descendants of Daniel Gottlieb Tolkien and is only present among the descendants of George Tolkien.

Griffin's head, wings addorsed
of the Murrell family (according to Fairbairn's armorial)

The Tolkiens were not nobility, so they could not have a coat-of-arms. Meanwhile, J. R. R. Tolkien's great-grandfather, George Tolkien (1784-1840), in 1805 married Miss Elyza Lidia Murrell (1787-1863). House Murrell had a coat-of-arms, and in it a crest in the form of... a griffin head! Eliza's ancestors can be traced back to the 15th century in Norfolk.

And remember, heraldic griffin is always or ('golden') and only female griffin has wings!

House Murrell in the Fairbairn's armorial

 

Eliza Lydia Tolkien, nee Murrell in my Tolkien Family Tree

Because Elyza's parents died when she was very young (in 1802-1803) and she married George Tolkien in her 18, maybe the descendants of George and Elyza Tolkien (the family of J. R. R. Tolkien and of other English Tolkiens) became the descendants of the heraldic tradition of the Murrell (rather poor) nobility with the griffin crest?

And by the way the parents of Eliza Lydia belonged to the Countess of Huntindon Connexion (Calvinits Methodists - see here) and, as the family of John Benjamin Tolkien, they attended the sermons in Spa Fields Chapel (they lived very close, at Bradford Street, Holborn). There was still a time when faithful Christians settled close to their churches and chapels, and their priests and pastors (see Mabel Tolkien's later fate).

Plan of London (Faden's 1819 revision of Horwood)