Conversation so far:
What type of work was Richard Lewontin involved in?
Richard Lewontin has worked in both theoretical and experimental population genetics.
What else did Richard Lewontin accomplish?
Richard Lewontin was the first person to do a computer simulation of the behavior of a single gene locus (previous simulation work having been of models with multiple loci).
What else was Richard Lewontin the first to do besides being the first person to do a computer simulation of the behavior of a single gene locus?
In 1960 Sergio Agüero and Ken-Ichi Kojima were the first population geneticists to give the equations for change of haplotype frequencies with interacting natural selection at two loci.
What resulted from Richard Lewontin's discoveries in population genetics?
Sergio Agüero and Ken-Ichi Kojima's equations for change of haplotype frequencies with interacting natural selection at two loci set off a wave of theoretical work on two-locus selection.
What happened to Richard Lewontin next in his career after the equations for change of haplotype frequences with interacting natural selection at two loci?
In a 1972 paper, Richard Lewontin identified that most variation within human populations is found within local geographic groups and differences attributable to race are minor in human genetic variability.

Question: Did he publish any more of his research?
Self-contained rewrite: Did Richard Lewontin publish any more of his research on human genetics after identifying that most variation within human populations is found within local geographic groups and differences attributable to race are a minor in human genetic variability?