I did have a chance to finish this series, which is 5 books and a 6th due out this year. In the stories, each heroine character is coming from a life of difficulties, where some know the other or were aware of each other in some way. Where often they are centered around the church; daughters of men of the cloth or outright abandoned in youth or widowed and left on their own - some with children.
This series is called Mischief in Mayfair, and as said elsewhere, it involved war veterans "Colonel Sir Orion Goddard, Alasdhair MacKay and Captain Dylan Powell" coming back with their interconnected experiences from the war involving pathological leadership, and what they did and how they reemerged back to society after the war to find their way. At the same time these men with their own scars are helping many of those who were under their command and other veterans who were abandoned to the streets of London.
Post war veteran abandonment bridges time.
The sixth book was read awhile back, which also ties back to the second book and the Vicar's daughter, Dorcas Delancey. At the end of that story, Dorcas's brother, Michael Delancey comes back from being away in the North and plays a role in the final of book two with his sister and father. However, there is something about Michael that is unsettling and not revealed, although it is learned he is following his father's footsteps at a Vicarage in some remote area,
Grace Burrowes had mentioned that she had wanted to tell Michael's story. Thus, book six is his story, which comes with deep conflict, struggle and sorrow as he returns to London after being away for five years. It is a story of deep troubles and misdeeds of the past - of and in a vicarage and its community, and the responsibilities of being in the London future that combine in a wider religious setting. The heroine of the story is the Lady, Psyche Fremont, who oddly enters his world with her own secrets and discovers the weight of what hangs over Michael.
Thought it rather a different story, and yet a good story as most of the series has been.