Hi Toby...I thought i may be a little rusty as i havent been on for ages but its a little like riding a bike really...you never forget!!...and i didnt really  remember how addictive it is...but i think you owe me a drink some time.....
     I went looking at some really old maps for Haydon but couldnt see anything the writing was so small....i need better glasses...so i 
decided to have a little look through the 1911 manually for Haydon.  I came upon a Farm called Brunmeadow Farm which i thought was a little bit of a coincidence as of course Grun is German for Green and wondered if the Brun had been misheard on the day of the census
PARISH OF RODBORNE CHENEY 
BRUNMEADOW FARM HAYDON SWINDON
 Living on the Farm in 1911 were..William George Sims        42                  Farmer                                  Seend Wiltshire
                                                       Lydia Sims                      47                                                              Atworth    ''
                                                       William Henry Sims         15    Son helping out on farm                    Broughton Gifford
                                                       Cecelia Helen Sims          14    Dairy Hand                                         Melksham
                                                        Edward Harold Sims       12     School                                               Chippenham
                                                       Olive Mary Sims                9         ''                                                       Rodbourne Cheney
and in doing some back tracking same family living in ...wait for it! 

Greenmeadow Farm in 1901!!!  I feel like the cat thats got the cream! 

  Besy Wishes Cheryle