Yes, there are a lot of them about - seems to be a very common Romanian name ! There are nine A. Popescu's alone (men and women)
I always use the ITF drawsheets for doubles and link to the individual players from there - I find it the easiest way, although I will check rankings from the WTA once the matches have started.
In terms of prevalence, Popescu is the equivalent of our Smith or Jones in Romania.
Sarah seems to pop up only in Romania these days. Is she based there now? Does she have family in Romania (Tatu being a Romanian name)? I know she was based in Spain.
If she does now live in Romania, it would be ironic that in her doubles team the Romanian lives in GB and the Brit lives in Romania!