  2 micron broad- and narrow-band imaging with the Gemini-N telescope of five
z~4.7 QSOs, has resolved both the host galaxies and [O II] emission-line gas.
The resolved fluxes of the host galaxies fall within the extrapolated spread of
the K-z relationship for radio galaxies at lower redshifts, and their resolved
morphology is irregular. The [O II] images indicate knots coincident with many
continuum features and also some bright jet-like features near the nucleus. The
line emission total fluxes indicate overall equivalent widths of 5 to 10 A at
rest wavelengths. Two of the QSOs are in a local environment of faint galaxies
of similar magnitude to the hosts, and three have nearby galaxies with excess
narrow-band flux, which would be [O II] if they are at the QSO redshift.
