Answer:

OUR

Answer	Crossword Clue
OUR	".. Miss Brooks"
OUR	".. Mutual Friend"
OUR	"... day will come...."

OUR	Wilder's ".. Town"
OUR	"... Miss Brooks"
OUR	"... Town"
OUR	Lord's Prayer start
OUR	".... Gang"
OUR	Possessive
OUR	Royal pronoun
OUR	Wilder's "... Town"

OUR	... Father
OUR	"Forgive us ... sins"
OUR	".. Town"
OUR	".. Man Flint"
OUR	.. Miss Brooks
OUR	Team's pronoun
OUR	Sharer's word
OUR	Wilder's .... Town.

OUR	... Town
OUR	Communal pronoun
OUR	Jointly owned, maybe
OUR	My group's
OUR	SOS "O"
OUR	"..... daily bread"
OUR	Paternoster starter
OUR	Possessive pronoun

OUR	Sandburg's "... Prayer of Thanks"
OUR	"... revels are now ended": "The Tempest"
OUR	"... Man in Havana" (Graham Greene novel)
OUR	Lord's Prayer starter
OUR	"... Miss Brooks" (1950s TV show)
OUR	Start of many Catholic-school names
OUR	Graham Greene's "... Man in Havana"
OUR	"... Mutual Friend" (Dickens novel)

OUR	"Town" or "Gang" preceder
OUR	Lord's Prayer opener
OUR	Hemingway's "In .. Time"
OUR	My gang's
OUR	".. Gang"