Various old rockers caned and rushed, but how old??

I just finished my once a year "project". I picked up the Walnut caned rocker at an estate sale in September for $10. The caning supplies cost about $30 from my favorite place in Longbeach CA.... I won't count the hours involved but it is now February.... :-) The rockers are hard maple and the side and back bottom spindles are oak and the rest is walnut. The carving is obviously by hand as it doesn't match perfectly from left to right and the two rectangular openings carved at the top were hand chiseled for the finishing. I couldn't date the wood screws that held the seat at the back and the arms but I don't think they were the originals...

Does anyone have a guess on an approximate age?

The larger rocker with the spindle back was my first caning project 7 years ago and my wife found that at an auction for $15 and I put another $40 into it. That one I think is made of ash as it is very light and stands 4ft tall. The arms are one piece bent up to the top back and were dovetailed in. Most of the chair was pegged. The few nails that were in the chair were "hammered" rectangular wrought iron nails so I think it is fairly old but not really sure.

The last little rocker I do know the age of and it is from about 1880 as it was passed to my grandmother from a neighbor who got it from her aunt and was used for her children. It is only 32" tall. That was my first and last rushing project as it is a killer on the wrists to keep the rush taut while weaving. That rocker weighs almost as much as the large ash rocker as it is all hard maple.