Over a period of 20 years, family genetic genealogy, through the purchase of consumer ancestry testing kits, has been one of the fastest growing family activities of this generation. Citing data from the International Society of Genetic Genealogy, the Washington Post reported in 2017 that eight million people worldwide were involved with recreational genomics. It is estimated that by 2019 about 25 million people had signed up for a DNA ancestry test offered by one of the dozens of companies that have entered this marketplace. The kits are sent to a person’s home with return packaging that includes a reservoir for depositing saliva or swabs for sampling cheek cells. The MIT Technology Review predicted that by 2021 there would be 100 million consumers of ancestry DNA services.