Listers, Maulden batches are full of SINFIELD records but I can't seem to find anyone who has done a comprehensive anaylsis of the various families. I have just extracted a small sample of 60 or so records over five SINFIELD families, while researching William Sinfield b1825 who married into a side branch of my ADAMS family of Maulden. I'm happy to summarise and pass on the data to anyone who may have interests in this surname. Peter in Sydney