Nerd is correct about jeans (genes, geanes jene, etc.); as a name for the material, it goes back to the 16th c. A quote from 1802 mentions the manufacture of fine jeans.
An article in Harpers (1885) spoke of jean clad mountaineers. Colors were several. These 'jeans' are not the type that most North Americans think of when they hear the term 'blue-jeans' today; 'Levis' etc. come to mind.

Levi Strauss invented the riveted heavy blue denim kind we know as 'blue-jeans'; he called them "waist overalls," patented 1873. The name blue jeans doesn't seem to attach to them until the 20th c.

Hermann Melville (1870s) spoke of a "blue-jean career," referring to naval officers. This doesn't seen to connect with current usage for the denims.

Now where the heck does anyone get the idea that "House of the Rising Sun" is earlier than 20th century? No anachronism here. And too many myths or just-so stories connected to the song, a 1920s blues lament, probably dating from the time the district embracing what had been Storyville (officially closed 1917) became a place of more 'general' entertainment. Assumption here that NO is meant in the song; it could have been Baltimore, etc. (And Nu Or-leens is commonly heard down there).
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Tailor- My first tailor-made suit was made for me when I got out of the army in the 1940s; the tailor was a woman who would have considered 'seamstress' derogatory. A seamstress does plain sewing only. Tailor refers to both sexes.