Jianer Chen pubished his first paper in 1989:
Jianer Chen,
A new complete language for DSPACE(log n),
Discrete Applied Mathematics 25, pp.19-26 (1989).
While
Jing Rong Chen pubished her first paper in 2006:
Andrew P. Baraniak, Jing R. Chen, and Mariano A. Garcia-Blanco,
Fox-2 Mediates Epithelial Cell-Specific Fibroblast Growth Factor Receptor 2 Exon Choice,
Molecular and Cellular Biology 26-4, pp.1209-1222 (2006).