Did Moses have more than one wife in his lifetime? EX 3:1 Jethro was the father-in-law of Moses.

NU 10:29, JG 4:11 (KJV) Hobab was the father-in-law of Moses.

This seems to suggest that he did. Curious if anyone else has looked into this.
About Jethro, Wikipedia states:


  There is some disagreement over the name(s) of Moses' father-in-law. In the KJV translation of Judges 4:11, a man named Hobab appears as Moses' father-in-law, while Numbers 10:29 makes him "the son of Raguel [Reuel] the Midianite, Moses' father in law". Reuel is noted Exodus 2:16, as "a priest of Midian" who had seven daughters. Exodus 2:18 "the girls returned to Reuel their father". Reuel becomes Moses' father in law in Exodus 2:21 "Moses agreed to stay with the man, who gave his daughter Zipporah to Moses in marriage."
  
  In Numbers 10:29, the Hebrew for the name Raguel is the same as the Hebrew for Reuel. The reason for the difference is that the Hebrew character ע (ayin) in רעואל is sometimes used merely as a vowel and sometimes as "g", "ng", and "gn", because of the difficulty of its pronunciation by European speakers. Re-u-el, with the first syllable strong accented, is nearer to the true pronunciation. Some suppose he was father to Hobab, who was also called Jethro, a likely possibility.[10]
  
  Another thing to consider is that there is only one Biblical Hebrew word for both "brother-in-law" and "father-in-law" (chathan).[11] It is, in fact, the word for any and all relations by marriage. If one takes into account the Biblical custom of multiple names for one person as well as Numbers 10:29 calling Hobab Reuel's son, Reuel and Jethro both appear as Moses' father-in-law,[12] while Hobab may be seen as his brother-in-law. However, this is disputed among theologians.[13][14] 


An example of a theological position about the issue can be found in this paper. The author argues that the contradiction is apparent. He states (p.9):


  The   information  which  has  been  preserved  in  the   traditions   dealing   with  Hobab  can  be  best  understood  to   say  that   Hobab,   son-in-law   of   Moses,  was  a  Midianite  belonging  to  the  clan  of  Reuel  and  a  smith  by  profession.    Jethro,  priest  of  Midian  and  father-in-law  of  Moses,  was  a  member  of  the  same  clan  (Reuel).   Although  their  roles  have  been  somewhat  confused  in  later  reflections  of  the  early  Israelite  traditions,  there  is  still  enough  information  preserved  to  suggest  this  reasonable  solution  to  the  puzzle.  


Details are in the paper, but for example he suggests that their profession (as stated in the Bible) were too different for them being the same person. I quote (pp.6-7):


  the  roles  of  Jethro  and   Hobab  are  entirely   different.   Jethro  appears  as  an  old  man  with  seven  daughters  (Ex 2,16),  who  advises  his  son-in-law  from  the  wealth  of  his  own  experience  (Ex  18).   Hobab,  on  the  other   hand,   appears  as a vigorous  younger  man  whom
    Moses  wishes  to  act as  guide  in  the  wilderness  (Nm  10,29-32) ...
  
  We  have  only  to  change  the  vocalization  from hôtën to hätän   where   Hobab is mentioned,  and our  difficulties  vanish:  render  Nm 10,29, "Hobab, son  of  Reuel,  the  Midianite,  son-in-law  of  Moses."   The  fact  that  both  Hobab  and  Jethro  belonged  to  the  clan  of  Reuel  should  cause  no  difficulty  whatsoever,  since  the  West-Semitic  nomads  were  as  a  rule  endogamous,   so one would expect  Moses' son-in-law  and father-in-law  both to come  from the  same clan.