It's quite difficult to judge on Wikipedia plot, but Esper and Moberg reconstructions seem to have the same trends at centennial scale (even if Esper's one have globally more amplitude than all others). (realclimate.org)
Mackas and Dunne and I noted the significant bias between the Secchi disk method and in situ fluorometry which, when combined with a shift from one sampling technique to the other during the 1900s, induced a spurious centennial scale trend in the data. (dotearth.blogs.nytimes.com)
Do these studies confirm that natural warming trends have occurred, not exactly, but they do provide evidence which supports stronger centennial scale variability than is readily accepted. (realclimate.org)