Non-Canon Kids
Any offspring of characters who are not Emily, William, Luke Doggett, or Matthew Scully
Pregnant Scully
Pregnancy stories (she's pregnant with Mulder's child unless otherwise noted), broken down by when during the series Scully was pregnant
Baby William
William, less than a year old
Toddler William
William, one to three years old
Kid William
William, three to eighteen years old, broken down by ages
Adoption Angst
Mulder and/or Scully dealing with William's adoption
Get Will Back!
William reunited with Mulder and Scully, broken down by how old he was (age 1-6 or 7+)
Lil' Brother William
William has biological or adopted older siblings
Big Brother William
William has younger siblings
Pregnant Reyes
Reyes expecting her own bundle of joy, usually with Doggett
Doggett/Reyes Kids
Usually set after "The Truth," Doggett and Reyes start a family
Post-Col Childhoods
Child characters experiencing invasion and colonization
Not!Dead Kids
Emily, (child)Samantha and/or Luke Doggett are alive in these fics set after their canon deaths
Other Emilys
Mulder and Scully discover that there are other lab created children
That Darn Fetus
What happened to the fetus shown in "Emily"
Twins or more!
Twins, triplets, quads etc
Agents Adopt
Someone adopts a child
Had Kids With Others
Kids that aren't from M/S or D/R pairings
Mulder, Single Dad
Mulder raises children on his own
Life After Mulder
Scully and her child(ren) move on after Mulder's death or disappearance
Pre-XF childhoods
Stories from when the characters were children or teens
slash & families
Gay characters experience parenthood
Challengefics
fics produced by The Nursery Files challenges
Teens
Teenage characters of all sorts
Casefile Kids
Unrelated children who are involved in cases
Crossovers
crossovers between The X-Files and assorted tv shows, movies and books
Little Ghosts
Ghosts of children and teenagers
Christmas & Kids
Family and casefile stories set at Christmas
Halloween & Kids
Family and casefile stories set at Halloween
Young Relatives
Nieces, nephews, and much younger siblings
Should Have Told You
Characters belatedly discover that they're parents (babies made the old-fashioned way only)
AU After Requiem
fics that break from canon after "Requiem"
AU After Existence
fics that break from canon after "Existence"
Grandpa Mulder and Grandma Scully
Usually set in the future, Mulder and Scully have grandchildren
The Empty Cradle
Miscarriages and otherwise lost children
Fic Pairs
A list of fics at The Nursery Files and their one each sequels
Series
A list of all the series housed at The Nursery Files
Bedtime Stories
Someone tells a child a bedtime story
Married With Children
Mulder and Scully have officially tied the knot and have kids. (also contains an engagement stories subcategory)
Gibson Praise
stories about Gibson set while he's a child or teenager.
Playing House
unmarried with children
Emily
stories set during "Christmas Carol" and/or "Emily"