What I can see happening sometimes is that the author doesn't have a page, but the page on the science clearly cites the person that ended up winning the Nobel.

In this case, the Wikipedia article on chirped pulse amplification has cited Donna Strickland as a co-inventor since 2008 (https://en.wikipedia.org/w/index.php?title=Chirped_pulse_amp...).

For phage displays, George P. Smith is not mentioned but at least cited as far back as 2008 (https://en.wikipedia.org/w/index.php?title=Phage_display&old...). By 2012, George P. Smith is directly mentioned. (https://en.wikipedia.org/w/index.php?title=Phage_display&old...)