Let's walk through this. WP:SYN (a section of WP:No original research) says, "Do not combine material from multiple sources to reach or imply a conclusion not explicitly stated by any of the sources. If one reliable source says A, and another reliable source says B, do not join A and B together to imply a conclusion C that is not mentioned by either of the sources." 
 Source A says her husband co-wrote the Bush play. Source B says Biegel co-wrote the Bush play. Conclusion C (Biegel is her husband) is not allowed. -