I have Orchards in my family line - from Ashbury in Berkshire. Just recently, I have discovered that, although this ancestor (Abraham Orchard) settled in this village from the early nineteenth century, he was from a travelling/ gypsy family. His brother, Edward, chose to continue travelling throughout Somerset, Devon and Dorset, according to Census records. I have been having great difficulty in tracing back from Abraham; even though I think that I have the names of his parents, I haven't been able to find their origins - no doubt because of their "here one day, gone tomorrow" lifestyle. Your Orchards may not fall into this category; but it may explain why you are finding it hard to track them down. So you may need to consider looking in a wide area for references.