I'm formatting a paper right now and there are two authors with the surname "Moran". I know that the usual way of going about that is to add the initial to each citation (J. Moran 2015; D. Moran 2014). But what is the standard way of doing that if one of the authors is also part of a three-author citation (e.g. Peters, (D.) Moran and Seegers)? Does the initial of the Moran that is referred to here also need to be included? Or is it unnecessary since it is clear from the two other names which work is referenced? I'm using Chicago author-date style (16th edition).