It sounds your chosen bride won't cut it, as there's a 10 years max age difference, as Repseki said.
The way I do it is to first cross my fingers and hope at least one of the two has any kind of relation to the other one (obviously excluding a grudge, and probably any family relation, such as cousin or uncle/aunt). Once there is at least a tenuous relation in at least one direction (they're not always mutual), I burrow both of them in a room (typically their bedroom) with a bed each beside each other as well as food and booze, and lock the door. The room is painted as a tavern (adding it to the normal one works fine). The tavern serves both the purpose of attracting the prospective partners to the room, and as a socializing engine for them to really get to know each other. It should take less than half a year for them to marry (frequently a lot less), and you can check on their relation progress from time to time.
If I attempt the same procedure with two strangers they'll chat for however long they're locked up, but have always remained strangers when let out.
It's not unusual for the booze to run out, so you need to check on your couple from time to time. You can then unlock the door and extend the burrow with a little piece over a food/booze stockpile. They should run out, sate the need, and return for more socializing.
Once they're married, a very similar strategy can be used to induce them to procreate: Once they're in the (locked) room, remove the taverns so they're not socializing. They should get bored and do what bored, married people do when no interesting alternatives are available (such as lightning knocking the TV out). Procreation happens when both parties are in the "No job" state and adjacent to each other. If DFHack is available it's possible to check for pregnancy, otherwise I let them have a few shift arounds so the get a number of adjacent periods. I then remove the burrow, unlock the door, and hope to get a dorfling 9 months later, which I usually do.
It can be noted that the new needs system interacts poorly with both burrows and military duties, with overridable needs still taking precedence over boring things like killing invaders. I've had MANY cases of burrowed dorfs running to their burrow, eat, exit and pray, go back to the burrow, drink, desert to meditate, ...