This collection is a little unique in that even though it has been added to FamilySearch, the custodian of the record, The National Archives in London, has restricted the use of the images to only include the Family History Centers and the main Family History Library in Salt lake City. To locate the closest Family History Center to where you live, visit the link below;
This collection, which contains the records of W.O. 363 and W.O. 364 contains over 43.5 million images. However, its very important to remember that many of the soldiers had multiple records so the number of people covered is far smaller. The collection is not name search able however it is alphabetical by surname.
The records do provide some very good information on the soldiers. In the case of Jack Gluckstein, there are about 20 pages of documents. Some examples of the type of information in those is shown below.
From his records we now know where he was born, the name of his father, his current address, and his age at enlistment, which when subtracted from the date of enlistment will give us his birth date.
If your ancestry is from the British Isles, this is a very important database for you. If you are attending the International Association of Jewish Genealogical Societies (IAJGS) conference later this month in Salt lake City, who will be able to visit the library and review these documents.