Plotting the birth, marriage and death registrations grouped into the surname variants that have been transcribed clearly shows which surnames are dominant. The Jer* surnames are Jermy, Jermey, Jermay, Jermany, Jermaney, Jermeny, Jermeney and Jermyn (fron Norfolk & Suffolk). The Ger* surnames are Germy, Germey, Germay, Germany, Germaney, Germeny, Germeney and Germyn. Similarly, the Jar* surnames are Jarmy, Jarmey, Jarmay, Jarmany, Jarmaney, Jarmeny, Jarmeney and Jarmyn; and the Gar* surnames are Garmy, Garmey, Garmay, Garmany, Garmaney, Garmeny, Garmeney and Garmyn.
The Jer* group of surnames have a significantly greater number of birth registrations than the other surname variants. Jermy is by far the most common surname within this group. The Ger* group of surnames has less than half the number of birth registrations of the Jer* group, with Germany being the most common surname within this group. The Jar* group of surnames has slightly less registrations than the Ger* group, although interestingly three variants have a similar number of registrations: Jarmy, Jarmyn & Jarmey. The Garmey surname is most common within the Gar* group of surnames, which have only one or two birth registrations per year on average. It is clear that most of the variation in birth registrations over the 1837 to 2004 period is due to the Jer* group of surnames.
The marriage registrations show a similar trend to the births, with the Jer* group having a significant effect on the overall variation. Registrations for this group exceeds all the other groups combined. Jar* and Gar* surname variants are again the least common forms registered.
Again, the death registrations exhibit a similar trend to the ones described above, with the Jer* group of surnames being more dominant than the others. Deaths for the Ger*, Jar* and Gar* variants are roughly uniform over the period being analysed, whilst the Jer* group shows a general increase in death registrations which reflects the increase in births during the early part of the twentieth century.