Following Elbert's attempt at dating Polynesian migration, it was Kenneth P. Emory who was finally able to map the migratory routes from West Polynesia (which he designated as Samoa and Tonga) to East Polynesia (Tahiti, the Marquesas, Easter Island, New Zealand, Mangareva and Hawaii.), as well as establish the rough chronology of these migratory events, and their origins \cite{Emory1963}. Emory, through his previous work and experience recognised the languages of Polynesia are very stable, and have a very similar vocabulary; because of this, glottochronological dating of Polynesian languages is more utilitous than it is when comparing languages over a continuous landmass \cite{Emory1959}.
Emory used a 100 word vocabulary list, which was a derivation of the Swadesh list with appropriate cultural substitutions (exclusion of Eurasian mammals & words without direct translations) and created reconstructions of proto-Polynesian and proto-East Polynesian to perform his analysis on. His results were stark - They displayed a very strong linguistic similarity between the languages within East Polynesia, and a strong similarity between the languages within West Polynesia. As well as showing a comparatively vast difference in similarity between the East Polynesian and West Polynesian language families.  The cause of the split, he inferred, was due partly to Elbert's theory of a long Eastern migratory pause (which Emory estimated was at least 500 years long, but admits could be as high as 700 years); however Emory also calculated a migratory pause in West Polynesia before migration to East Polynesia began, and this pause he estimated to be around 500 years as well. Emory's paper also confirmed one of Elbert's theories: That Easter Island was one of the first islands to be inhabited after migration from the East began, contrary to the popular opinion of the time \cite{Parmentier_1998}. His research was able to establish a rough route of migration, which is pictured in Figure 4. with dates of arrival: