* Tracy: There's no direct equivalent. You might find a name with a similar meaning or sound, but it would be a matter of personal preference.
* Jean: In Scottish Gaelic, this is often rendered as Iain (masculine) or Màiri (feminine, equivalent to Mary). In Irish Gaelic, it's Séan (masculine) or Síne (feminine, a variant of Jane). Since "Jean" is typically feminine, you'd use the feminine form.
Therefore, you'd need to choose equivalents you like the sound of. There is no single "correct" translation. You might consider combinations like:
* (Scottish Gaelic, feminine options): You might use a Gaelic name that sounds similar to Tracy paired with Màiri. There's no perfect match for Tracy though.
* (Irish Gaelic, feminine options): Similarly, choose a name that evokes a similar feeling to Tracy and pair it with Síne. Again, there's no exact translation for Tracy.
Ultimately, the best approach is to choose names that sound pleasing and have meaning to you. You're not literally translating; you're finding analogous names.