In my opinion, yes. Both of them. I checked his Dutch ancestors and Rosenfeld or Rosenvelt was a common surname among Dutch and North German jews. During the period of his ancestors' emigration to New Amsterdam, there was a large [jewish](https://www.rosenfeldsjewishdeli.com/catering) community of both Sephardic and Ashkenazi origin. [Here ](http://mileswmathis.com/butler.pdf)you will find a very interesting analysis.