Chandler, A. Bertram
SPARTAN PLANET [grimes]
The first American edition of Spartan Planet - a "Grimes/Rim" novel by A. Bertram Chandler - was a 1969 paperback. Previously serialized in Fantastic in 1968. Only the 1968 Australian first edition paperback was titled False Fatherland - all other editions/appearances have this title.
The planet Sparta was a lost colony, and developed in some strange ways after an accident in space killed all the women. Birth-machines were used to provide population, and society was modeled after ancient Sparta, with the State taking the place of father or mother - but there were no mothers in this monosexual society, and a history was invented to describe their situation. The starship Seeker III of the Federation Survey Service comes on a census mission, bearing Leiutenant Commander John Grimes and Doctor Margaret Lazenby.