DNA expert reveals secrets hidden in family trees at Chase Golf Club

Speaker Karen Evans brought science to the Chase Golf Club, explaining the fascinating world of DNA and how it can help answer the question: “Where does my family come from?”

Now writing for Family Tree Magazine and giving talks on DNA, Karen described herself as a historian rather than a scientist. She began with some basic biology to help explain DNA testing and its potential.

She explained how female eggs produce X chromosomes, while Y chromosomes are produced by sperm from a male. The nucleus of the egg produces mitochondrial DNA (mtDNA), which follows the female line and remains stable through generations. This means that several generations of grandmothers can share the same DNA.

With documentation from thousands of years ago often unavailable, DNA testing can help people discover who they are related to. Karen also explained that testing the Y chromosome through the male line can provide information, although it is not as stable beyond around 100 years.

Karen enthusiastically explained how chromosomes work, splitting into 22 pairs. Each parent passes on 50 per cent of their DNA, but the inherited remainder from both parents combines at random points. This means each person’s DNA combination is unique, with random DNA inherited from previous generations.

DNA tests look for segments shared with the same ancestors. However, Karen advised individuals to consider why they are taking a test, the type of test required, the size of the database available and the cost.

The reason for taking a test determines which company may be most suitable. For example, tests can be used to establish parenthood through a birth certificate search, or for genealogy purposes to discover ethnicity and family relationships. Karen explained that larger companies, such as Ancestry with its 25 million users, have access to a wider database, while smaller companies may have fewer users willing to share their information.

Karen also shared her own experiences of researching her family’s DNA, including the shock discovery of a murderer in her family history.

She gave a fascinating case study of an “illegitimate grandad” who was brought up in the 1930s by his mother’s sister and her husband. The family secret remained hidden until research into the family tree revealed the truth.

The story showed how family trees can uncover hidden histories, whether people are searching for parents, cousins or connections to relatives from different locations and social backgrounds.

Raffle prizes for the Chairman’s Cheer included wine, while Paul’s Prize was a beautiful plant, kindly donated by Paul James Fowler, our Maître D and honorary member, who goes above and beyond to meet our needs.

The next speaker on August 6, will discuss The Role of Women in Today’s RAF.

Retired or semi-retired professional and business ladies meet on the first Thursday of each month at Chase Golf Club at 12 noon to enjoy a meal, fellowship, speakers, outings and other activities.

New members are welcome. Annual membership is still only £16 and a two-course lunch costs £23.

For further information, contact Membership Secretary Barbara on 07801 370935 or Chairman Chris on 01543 879324.