Though the purpose this website is primarily to provide information about Mercer families from Kennoway in Fife, there are many Mercer families who have Scottish connections but no link with Kennoway. These are dealt with in this section of the website.
One of the most interesting stories is the Story of the Mercer Millions, an elusive (or illusory) fortune talked about in many Mercer families.
This table provides an overview of some of the Mercer families and their trees.
| Family Tree | Named Relatives | Generations | Dates | Keywords |
| Aleumus de Meser | 2 | 2 | 1190-1261 | Tillicoultry Clackmannanshire |
| “Joymar” | 38 | 4 | 1809-1973 | Saline Fife Clackmannanshire Australia Smeaton Cousins |
| Mercers of Perth | 19 | 1200-1914 | Aldie, Baleve, Balleif, Clevage, Forgandenny, Germany, Gorthy, Huntingtower, Innerpeffray, Meikleour, Perth, Pitteuchar, Potterhill, Australia, India, Tasmania | |
| “Merpen” | 18 | 4 | 1722-1943 | Perthshire Kincardineshire Stirlingshire Australia |
| Linda Temple | 166 | 9 | 1747- | Dunfermline Inverkeithing |
| Brig.Gen.Hugh Mercer | 26 | 9 | 1476- | Pitsligo, Pennsylvania, Mercersburg, Frederiksburg, Trenton, Princeton. |