This sets of three graphs compare tie weight distribution in the three one-mode networks of multiple attendance at the meetings of the Shanghai Rotary Club under President Petit's (1919-20), Fitch's (1930-1) and Harkson's (1938-9) terms.  In this network, nodes represent social roles (role types) performed by participants during club meetings, whereas edges represent persons holding multiple roles. Any edge links two roles performed by the same person. The absence of ties reflects incompatible roles. Tie weight expresses the most frequent combinations of roles (using the “sum” method). The original datasets and the resulting graphs are available in the "Tables" and "Trees" section, respectively. We used the R package "dplyr" to make these graphs.