Rosser, Roser, Rossear, Rhoshier, Rhosier, or any reasonable spelling variation are welcome to join the project. Only males have Y-chromosomes, so only male Rossers (or variants) can participate. If you are female, you can have a male Rosser relative submit a sample for your line. To participate meaningfully, testees will need to share their direct male ancestral line back to the earliest known Rosser in the form of a pedigree chart (excluding living persons).