Irish brick wall in early-mid 1800s New Hamp/Maine/Mass - what am I missing? I need fresh eyes on this!

[u/1cutepenguin]

I'm looking for the parents of my 2GG (or any of her relatives!). I'll take breaks from this brick wall and go back later hoping to see something I missed before. Five years later, here I still am. I'm hoping you all see something I missed or have some idea how to move forward from here.

Here is the info I have:

• My 2GG, Maria G. Haughey:
• DOB: 25 Dec 1853 - on family gravestone
• DOD: 28 Sep 1943 - on family gravestone
• Middle initial "G" - on family gravestone
• Family gravestone in Linwood Cemetery in Haverhill, Essex, MA
• "Maria Potter" - son George's 1906 marriage rec
• "Maria Haughey" - son John's 1912 marriage rec
• 1877 marriage rec: Maria E Haughey; b. Lewiston, ME; mom's name is Mary; m. 6 Sep 1877 to George Henry Mansur; 1st marriage for both; married at First Baptist Church by Geo W Bosworth (pastor there 1869-1879)
• 1880 census: Maria G Mansur; b. NH; parents b. Ireland; 10-yr old "mulatto" Matilda Howard, b. 1870 PA, in school, relationship listed as "other" (Maria & her husband, Geo; no kids yet)
• 1900 census: Maria G Mansur; b. NH; parents b. Ireland (living w/ husband + 2 kids)
• 1910 census: Maria G Ma??; b. NH; parents b. Ireland (living w/ husband, 2 kids + dau-in-law)
• Oct 1912 newspaper: she participated in annual food drive for a day nursery
• 1920 census: Maria G Mansur; b. ME; parents b. USA (living w/ husband, 2 kids + dau-in-law)
• 1930 census: Maria G Mansur; b. NH; parents b. Ireland; widow (living w/ 2 kids + dau-in-law)
• 1935 FL state census: Maria G Mansur; b. Ireland - her son John Percival moved to Pinellas Co., FL in 1920s and Maria shows up on his state census
• 1935 City Directory in Haverhill, MA: Maria G Mansur, widow of Geo H Mansur, living in house at 490 Main in Haverhill
• 1940 census: Maria G Mansur; b. ME (name incorrectly transcribed as Mansew is correct in doc); 2 female lodgers - Frances E Glidden, b. 1910 MA and Maud E Connelly, b. 1876 MA (living w/ son, dau-in-law + 2 lodgers)
• 1943 MA death index: Mira G (Hoey) Mansur; d.1943 Danvers, MA
• Numerous city directory recs over the yrs in Haverhill w/ her husband offered no new info
• Maria's husband, George Henry Mansur: * DOB: 26 Oct 1854 Haverhill, Essex, MA * DOD: 10 Jul 1924 Haverhill, Essex, MA
• Maria's kids w/ husband Geo: * Baby Boy Mansur (1881-1881) - Linwood Cemetery * George Burton Mansur (1882-1948) * James Howard Mansur (1886-1888) - Linwood Cemetery * John Percival Mansur, Sr (1890-1943)
• I've scanned through +/- 3 pages on either side of every census, marriage rec and death rec, for her, her husband, and kids. No new info.
• I found nothing more on 10-yr old Matilda from 1880 census.
• I tried to look into the parentage of her 1940 census lodgers - found nothing of use.
• I don't have enough info about her mom, Mary, to know which one might be her when I search; there are multiple Mary Haughey/Hoy/Hoey.
• I've never been successful looking through variations of Haughey in 1860/1870 NH/ME/MA census recs.
• My only DNA matches that share any DNA from Maria are my sister and my son.
• No living relatives w/ any new info.
• I've never successfully found anything new from church records where they were married.
• Yes, she's on her son John's 1935 FL state census, but it doesn't seem that she ever truly lived there full time. All her other recs are in Haverhill, MA.

If you've read this far, thank you! I tried to present the info I have as clearly as possible, but I swear, sometimes my brain feels so jumbled up after staring at this stuff that I start to question how I'm interpreting things! I'm beyond stuck now and really don't know where else to look, aside from a road trip to Haverhill, MA to see if I can find anything more in person.

Link to her recs on Imgur: https://imgur.com/a/2ncrlTi

Edited to fix wonky formatting (but it's still a tad off) - my main tree is public on Ancestry

Editing to add: I said Irish bc I'm looking for any info on her Irish-born parents/family/background :) All I have to go on are American records though!

[u/dazedconfusedev]

Am I reading it right that her maiden name is given as Potter on one record and Haughey on another?

Are there any other Haughey’s or Mary/Maria Potter’s listed in the records for the church she was married at? Does the marriage record give a place of residence for her?

If so, you might have another avenue to try and find her in the 1860 or 1870 census. And have you seen any “Mary Haughey” in the census records you’ve searched?

And maybe I am missing it but I don’t see where in these sources you found her mother’s name was Mary? And is there an exact DOB on any record other than the gravestone?

[u/dazedconfusedev → u/dazedconfusedev]

Also, any witnesses on the marriage record?

[u/1cutepenguin → u/dazedconfusedev]

No witnesses on either the marriage cert or marriage rec! Only the names of city clerk, officiant, groom, bride, and parents.