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We present the second part of an H-band (1.6 microns) atlas of z<0.3 3CRradio galaxies, using the Hubble Space Telescope Near Infrared Camera andMulti-Object Spectrometer (HST NICMOS2). We present new imaging for 21 recentlyacquired sources, and host galaxy modeling for the full sample of 101(including 11 archival) -- an 87% completion rate. Two different modelingtechniques are applied, following those adopted by the galaxy morphology andthe quasar host galaxy communities. Results are compared, and found to be inexcellent agreement, although the former breaks down in the case of stronglynucleated sources. Companion sources are tabulated, and the presence ofmergers, tidal features, dust disks and jets are catalogued. The tables form acatalogue for those interested in the structural and morphological dust-freehost galaxy properties of the 3CR sample, and for comparison with morphologicalstudies of quiescent galaxies and quasar host galaxies. Host galaxy masses areestimated, and found to typically lie at around 2*10^11 solar masses. Ingeneral, the population is found to be consistent with the local population ofquiescent elliptical galaxies, but with a longer tail to low Sersic index,mainly consisting of low-redshift (z<0.1) and low-radio-power (FR I) sources. Afew unusually disky FR II host galaxies are picked out for further discussion.Nearby external sources are identified in the majority of our images, many ofwhich we argue are likely to be companion galaxies or merger remnants. Thereduced NICMOS data are now publicly available from our website(http://archive.stsci.edu/prepds/3cr/)

HST NIR Snapshot Survey of 3CR Radio Source Counterparts II: An Atlas and Inventory of the Host Galaxies, Mergers and Companions