Sarah Guest was born on Norfolk Island on 1 May 1792. On 12 September 1808 she married Thomas William Birch at St David's Church in Hobart. Sarah and Thomas had seven children and then Thomas died 1 December 1821. I was unable to locate any information about Sarah's death. It was a mystery. I did realise that she may have remarried, especially as Sarah was 29 when Thomas died, but I did not have the time to travel into the city to spend hours investigating microform records for possible information about Sarah.
Some years later, when working in a library, I came across a series of books with the title - Genealogical Research Directory. These volumes, published annually, contained the names of people being researched with the name of the researcher. You could therefore look up the name of someone on your family tree to see if they appeared in the book and, if so, who was researching that person.
Needless to say, over the years I have been able to add the flesh to Sarah's story, especially via newspaper articles in Trove and other sources. However I am very thankful that many years ago the Genealogical Research Directory existed to assist family history researchers connect with others researching the same family member.