Thought id crack this in an hour whilst the Misses was at the shops, that was Saturday, anyways dont laugh.
1) Bizen Suke Fujiwara Munetsugu, Shinshinto (circa 1860). Originally thought one of the Suishinshi school pupils, Naotane or Naokatsu maybe.
2) Inoue Shinkai, Edo (mid to late 1600,s). Difficult from pics, but sure I see Masame in the Shinogi-ji, originally was thinking Hizen.
3) Rai Kunitoshi, Kamakura (1300). This one was the most difficult. The hamon is interesting, seen it before but cant remember where. looked at everything from Awataguchi to Naoe Shizu, but finally settled on Rai, mainly because I read of the mix between midare and suguha..
Wish I could give a better explanation as to the answers, but the reality is 4 hours of muddling through internet and books