There are many ways of spelling the name and I have registered the following variants with the Guild Of One Name Studies:

Hunniford, Honeyford, Huniford, Honiford and Honniford  

The first two are by far the most common, with Honeyford being found more frequently than Hunniford.  My father’s earlier birth certificates are Honeyford, with a later one amended to Hunniford.  His father’s parish birth entry is Honeyford, while his marriage entry is Hunniford.  I have even seen a marriage certificate where the Vicar entered the bride as Margaret Honeyford and she signed Hunniford !

There are other possibilities, which I have not researched, such as Hanniford, Huntingford etc.  Perhaps some day.