Basically anyone who is called Rutman (or Rottman/Roitman/Rottmann) which was also called Gurovich, must be related.
Etlya Rutman/ Gurovich Born in Odessa at 1896
Ester Rutman/ Gurovich Born in Odessa at 1897
Rukhel Rutman/ Gurovich Born in Odessa at Jun 1897
Source: https://www.jewishgen.org/databases/ukraine/odessa_birth_index.htm
Note: It could be some of these people were killed sometime during the Pogrom (Riot) in 1905
