My packrat memory tells me that Donald Barr, the sf writer, is
actually/also Donald Barr Chidsey, the historian/historical writer.
Try looking under this name -- probably (sigh) under "mainstream"
(i.e., non-sf).
This would explain the high density of political issues and rhetoric
in SPACE RELATIONS, and why the climax is more societal than personal.
daniel dern
dd...@bbn.com (ARPA)